Which anaesthetic agents are cost-effective in day surgery? Literature review, national survey of practice and randomised controlled trial.

UI - 22595342DA - 20030423IS - 1366-5278LA - engPT - Clinical TrialPT - Journal ArticlePT - Randomized Controlled TrialPT - ReviewPT - Review, AcademicRN - 0 (Anesthetics)RN - 0 (Anesthetics, Inhalation)RN - 0 (Anesthetics, Intravenous)RN - 0 (Methyl Ethers)RN - 2078-54-8 (Propofol)RN - 26675-46-7 (Isoflurane)RN - 28523-86-6 (sevoflurane)SB - IM

[1]  R. Elliott,et al.  Anaesthetic agents in adult day case surgery , 2003, European journal of anaesthesiology.

[2]  D. Moher,et al.  The Revised CONSORT Statement for Reporting Randomized Trials: Explanation and Elaboration , 2001, Annals of Internal Medicine.

[3]  S. Thompson,et al.  Analysis of cost data in randomized trials: an application of the non-parametric bootstrap. , 2000, Statistics in medicine.

[4]  K. Kwan,et al.  Volatile induction and maintenance (VIMA) versus total intravenous anaesthesia (TIVA) for minor gynaecological procedures , 2000 .

[5]  Y. Nakata,et al.  Emergence agitation after sevoflurane versus propofol in pediatric patients. , 2000, Anesthesia and analgesia.

[6]  I. Bali,et al.  Tracheal intubating conditions after induction with sevoflurane 8% in children , 2000, Anaesthesia.

[7]  William J. Perks,et al.  Sevoflurane Versus Propofol for Anesthetic Induction: A Meta-Analysis , 2000, Anesthesia and analgesia.

[8]  T. Loop,et al.  Recovery After Anesthesia with Remifentanil Combined with Propofol, Desflurane, or Sevoflurane for Otorhinolaryngeal Surgery , 2000, Anesthesia and analgesia.

[9]  Martikainen,et al.  One-week recovery profiles after spinal, propofol, isoflurane and desflurane anaesthesia in ambulatory knee arthroscopy. , 2000, Ambulatory surgery.

[10]  T Fahey,et al.  The impact of patients' preferences on the treatment of atrial fibrillation: observational study of patient based decision analysis. , 2000, BMJ : British Medical Journal.

[11]  A. Staack,et al.  Evaluation of three risk scores to predict postoperative nausea and vomiting , 2000, Acta anaesthesiologica Scandinavica.

[12]  L. Seidel,et al.  Assessment of postoperative nausea using a visual analogue scale , 2000, Acta anaesthesiologica Scandinavica.

[13]  A. Margovsky.  Unplanned admissions in day-case surgery as a clinical indicator for quality assurance. , 2000, The Australian and New Zealand journal of surgery.

[14]  C. Klersy,et al.  The Awareness of Being Observed Changes the Patient’s Psychological Well-being in Anesthesia , 2000, Anesthesia and analgesia.

[15]  M. Pellegrini,et al.  Quality of recovery in children: sevoflurane versus propofol , 2000, Acta anaesthesiologica Scandinavica.

[16]  V. Peduto,et al.  Sevoflurane provides better recovery than propofol plus fentanyl in anaesthesia for day-care surgery. , 2000, European journal of anaesthesiology.

[17]  G. Baer,et al.  Recovery characteristics of sevoflurane or halothane for day‐case anaesthesia in children aged 1–3 years , 2000, Acta anaesthesiologica Scandinavica.

[18]  J. Boldt,et al.  Cost Analysis of Different Volume Replacement Strategies in Anesthesia , 2000, Transfusion Medicine and Hemotherapy.

[19]  F. Chung,et al.  Factors contributing to a prolonged stay after ambulatory surgery. , 1999, Anesthesia and analgesia.

[20]  L. O'Brien-Pallas,et al.  Nursing workload associated with adverse events in the postanesthesia care unit. , 1999, Anesthesiology.

[21]  C. Ries,et al.  Cost comparison of sevoflurane with isoflurane anesthesia in arthroscopic menisectomy surgery , 1999, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[22]  J. Brimacombe,et al.  Sevoflurane versus propofol for induction and maintenance of anaesthesia with the laryngeal mask airway in children , 1999, Paediatric anaesthesia.

[23]  H. Wissing,et al.  Incidence of nausea and vomiting in children after strabismus surgery following desflurane anaesthesia , 1999, Paediatric anaesthesia.

[24]  D. Westerling.  Postoperative recovery evaluated with a new, tactile scale (TaS) in children undergoing ophthalmic surgery , 1999, PAIN.

[25]  Y. Gürkan,et al.  Propofol‐nitrous oxide versus sevoflurane‐nitrous oxide for strabismus surgery in children , 1999, Paediatric anaesthesia.

[26]  I. A. Johnson,et al.  A multicentre comparison of the costs of anaesthesia with sevoflurane or propofol. , 1999, British journal of anaesthesia.

[27]  W. Fish,et al.  Comparison of sevoflurane and total intravenous anaesthesia for daycase urological surgery , 1999, Anaesthesia.

[28]  A. Yli-Hankala,et al.  Comparison of sevoflurane-nitrous oxide and propofol-alfentanil-nitrous oxide anaesthesia for minor gynaecological surgery. , 1999, British journal of anaesthesia.

[29]  I. Smith,et al.  Double-blind comparison of sevofluran vs propofol and succinylcholine for tracheal intubation in children. , 1999, British journal of anaesthesia.

[30]  C. Campbell,et al.  Assessing surgical patients' expectations and subsequent perceptions of pain in the context of exploring the effects of preparatory information: raising issues of gender and status , 1999, European journal of pain.

[31]  Baker,et al.  Sevoflurane: a comparison between vital capacity and tidal breathing techniques for the induction of anaesthesia and laryngeal mask airway placement , 1999, Anaesthesia.

[32]  K. Cheng,et al.  Total intravenous anesthesia using propofol and ketamine for ambulatory gynecologic laparoscopy. , 1999, The Kaohsiung journal of medical sciences.

[33]  Yw Chiu,et al.  Audit of paediatric day-case surgery in a district general hospital , 1999 .

[34]  M. Johannesson,et al.  Use of contingent valuation to place a monetary value on pharmacy services: an overview and review of the literature. , 1999, Clinical therapeutics.

[35]  P. White,et al.  A cost comparison of methohexital and propofol for ambulatory anesthesia. , 1999, Anesthesia and analgesia.

[36]  I. Smith,et al.  Target‐controlled propofol vs. sevoflurane: a double‐blind, randomised comparison in day‐case anaesthesia , 1999, Anaesthesia.

[37]  U. Santawat,et al.  Recovery after total intravenous anesthesia (TIVA) using propofol and inhalation anesthesia (IA) using halothane in day case surgery. , 1999, Journal of the Medical Association of Thailand = Chotmaihet thangphaet.

[38]  S. Serin,et al.  Comparison of Halothane/Thiopental and Propofol Anesthesia for Strabismus Surgery , 1999, Ophthalmologica.

[39]  P. White,et al.  Recovery profile, costs, and patient satisfaction with propofol and sevoflurane for fast-track office-based anesthesia. , 1999, Anesthesiology.

[40]  T Klose,et al.  The contingent valuation method in health care. , 1999, Health policy.

[41]  A. Beskow,et al.  Sevoflurane causes more postoperative agitation in children than does halothane , 1999, Acta anaesthesiologica Scandinavica.

[42]  D. Sessler,et al.  Onset time, recovery duration, and drug cost with four different methods of inducing general anesthesia. , 1999, Anesthesia and analgesia.

[43]  J. Jakobsson,et al.  The sevoflurane‐sparing effect of nitrous oxide: a clinical study , 1999, Acta anaesthesiologica Scandinavica.

[44]  T. Lee,et al.  Comparison of sevoflurane with propofol for laryngeal mask airway insertion in adults. , 1999, Anesthesia and analgesia.

[45]  K. Goa,et al.  Sevoflurane in Paediatric Anaesthesia , 1999, Paediatric drugs.

[46]  D. de Amici,et al.  Anesthesia with Sevoflurane in Bariatric Surgery , 1999, Obesity surgery.

[47]  R. Mirakhur,et al.  Comparison of sevoflurane and propofol with rocuronium for modified rapid‐sequence induction of anaesthesia , 1999, Anaesthesia.

[48]  W. Jellish,et al.  Comparison of 3 Different Anesthetic Techniques on 24-Hour Recovery after Otologic Surgical Procedures , 1999, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[49]  I. Cooke,et al.  Morbidity and cost-effectiveness analysis of outpatient analgesia versus general anaesthesia for testicular sperm extraction in men with azoospermia due to defects in spermatogenesis. , 1999, Human reproduction.

[50]  J. Boldt,et al.  Total intravenous anesthesia with remifentanil and propofol for implantation of cardioverter-defibrillators in patients with severely reduced left ventricular function. , 1999, Journal of cardiothoracic and vascular anesthesia.

[51]  R. Simpson,et al.  Anaesthesia for daycase gynaecological laparoscopy: a survey of clinical practice in the United Kingdom , 1999, Anaesthesia.

[52]  N. Nathan,et al.  Comparison of sevoflurane and propofol for ambulatory anaesthesia in gynaecological surgery , 1998, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[53]  J. Seago,et al.  Factors influencing stay in the postanesthesia care unit: a prospective analysis. , 1998, Journal of clinical anesthesia.

[54]  I. Kestin,et al.  Recovery characteristics using single‐breath 8% sevoflurane or propofol for induction of anaesthesia in day‐case arthroscopy patients , 1998, Anaesthesia.

[55]  Dubreuil,et al.  Paediatric day case anaesthesia: estimate of its quality at home , 1998, Paediatric anaesthesia.

[56]  M. Martikainen.  Home readiness after day-case knee arthroscopy: spinal, desflurane, isoflurane or propofol anaesthesia? , 1998 .

[57]  P. White,et al.  Antiemetic Activity of Propofol after Sevoflurane and Desflurane Anesthesia for Outpatient Laparoscopic Cholecystectomy , 1998, Anesthesiology.

[58]  Rod J. Rohrich,et al.  A total intravenous anesthetic technique for outpatient facial laser resurfacing. , 1998, Anesthesia and analgesia.

[59]  K. Gnanalingham.  Day case hernia repair under local versus general anaesthesia: patient preferences , 1998 .

[60]  A Briggs,et al.  The Distribution of Health Care Costs and Their Statistical Analysis for Economic Evaluation , 1998, Journal of health services research & policy.

[61]  C. Mann,et al.  Improved postoperative analgesia with isoflurane than with propofol anaesthesia , 1998, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[62]  B. Sweeney,et al.  Postoperative nausea and vomiting in arthroscopic day‐case surgery: a comparison between desflurane and isoflurane , 1998, Anaesthesia.

[63]  S. Tarhan,et al.  Study of direct variable anesthesia costs in the dilatation and curettage patient. , 1998, AANA journal.

[64]  M C Weinstein,et al.  The impact of risk information on patients' willingness to pay for autologous blood donation. , 1998, Medical care.

[65]  J. Ashworth,et al.  Comparison of Desflurane with Isoflurane or Propofol in Spontaneously Breathing Ambulatory Patients , 1998, Anesthesia and analgesia.

[66]  H. Owen,et al.  Lack of Efficacy of Propofol in the Treatment of Early Postoperative Nausea and Vomiting , 1998, Anaesthesia and intensive care.

[67]  K. Maeshima,et al.  [Comparison of the amnesic effects of propofol and isoflurane anesthesia]. , 1998, Masui. The Japanese journal of anesthesiology.

[68]  J. R. Sneyd,et al.  A meta-analysis of nausea and vomiting following maintenance of anaesthesia with propofol or inhalational agents. , 1998, European journal of anaesthesiology.

[69]  A. Berg,et al.  Vomiting, retching, headache and restlessness after halothane‐, isoflurane‐ and enflurane‐based anaesthesia: An analysis of pooled data following ear, nose, throat and eye surgery , 1998, Acta anaesthesiologica Scandinavica.

[70]  A Gafni,et al.  Health care contingent valuation studies: a review and classification of the literature. , 1998, Health economics.

[71]  W. Chambers,et al.  Minor morbidity after day-case surgery. , 1998, Scottish medical journal.

[72]  Alan E. Simon,et al.  The Effect of a Drug and Supply Cost Feedback System on the Use of Intraoperative Resources by Anesthesiologists , 1998, Anesthesia and analgesia.

[73]  Y. Tai,et al.  Comparison of hemodynamics and recovery of sevoflurane and isoflurane anesthesia in Chinese adult patients. , 1998, Acta anaesthesiologica Sinica.

[74]  J. Boldt,et al.  Economic Considerations of the Use of New Anesthetics: A Comparison of Propofol, Sevoflurane, Desflurane, and Isoflurane , 1998, Anesthesia and analgesia.

[75]  J. Biemans.  Patient satisfaction after laparoscopic and conventional day case inguinal hernia repair , 1998 .

[76]  H. Sparr,et al.  Positive pressure ventilation with the laryngeal mask airway in non-paralysed patients: comparison of sevoflurane and propofol maintenance techniques. , 1998, British journal of anaesthesia.

[77]  Paul Rutter,et al.  Pharmacy research: the place of work measurement , 1998 .

[78]  P. White,et al.  Fast-Track Eligibility After Ambulatory Anesthesia: A Comparison of Desflurane, Sevoflurane, and Propofol , 1998, Anesthesia and analgesia.

[79]  O. Mjåland,et al.  Desflurane versus propofol maintenance for outpatient laparoscopic cholecystectomy , 1998, Acta anaesthesiologica Scandinavica.

[80]  A. Burton,et al.  Sevoflurane or Halothane Anesthesia: Can We Tell the Difference? , 1997, Anesthesia and analgesia.

[81]  M. Galloway,et al.  Haematologists in district general hospitals practise evidence based medicine. , 1997, Clinical and laboratory haematology.

[82]  R. Haugen,et al.  A Comparison of Sevoflurane with Halothane for Paediatric Day Case Surgery , 1997, Anaesthesia and intensive care.

[83]  R. Morgan,et al.  The incidence of minor sequelae following anaesthesia in children. , 1997, Paediatric anaesthesia.

[84]  J. Cassuto,et al.  A Randomized, Blind Comparison of Remifentanil and Alfentanil During Anesthesia for Outpatient Surgery , 1997, Anesthesia and analgesia.

[85]  H. Vaghadia,et al.  Pharmacoeconomics of intravenous regional anaesthesiavs general anaesthesia for outpatient hand surgery , 1997, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[86]  Janice M. Morse,et al.  "Perfectly Healthy, but Dead": The Myth of Inter-Rater Reliability , 1997 .

[87]  I. Moilanen,et al.  Behavioural changes in children following day‐case surgery: a 4‐week follow‐up of 551 children , 1997, Anaesthesia.

[88]  D. Tong,et al.  Predictive Factors in Global and Anesthesia Satisfaction in Ambulatory Surgical Patients , 1997, Anesthesiology.

[89]  J. Valanne,et al.  Postoperative symptoms at home following day‐case surgery in children: a multicentre survey of 551 children , 1997, Anaesthesia.

[90]  P. White,et al.  Eltanolone as an Alternative to Propofol for Ambulatory Anesthesia , 1997, Anesthesia and analgesia.

[91]  D. O'Hara,et al.  Pharmacoeconomic Analysis of Sevoflurane versus Isoflurane Anesthesia in Elective Ambulatory Surgery , 1997, Pharmacotherapy.

[92]  E. Tarazi,et al.  A comparison of recovery after sevoflurane or desflurane in ambulatory anesthesia. , 1997, Journal of clinical anesthesia.

[93]  T. Tagliente.  Pharmacoeconomics of propofol in anesthesia. , 1997, American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists.

[94]  H. Jiang,et al.  Clinical study of desflurane on low flow anesthesia compared with sevoflurane and enflurane. , 1997, Chinese medical journal.

[95]  J. Ræder,et al.  Recovery characteristics of sevoflurane‐ or propofol‐based anaesthesia for day‐care surgery , 1997, Acta anaesthesiologica Scandinavica.

[96]  K. Hamunen,et al.  Does propofol reduce vomiting after strabismus surgery in children? , 1997, Acta anaesthesiologica Scandinavica.

[97]  J. Jakobsson.  Cost-effective anaesthesia for outpatient arthroscopic surgery: Desflurane versus propofol? , 1997 .

[98]  P. Carroll.  The safety, efficacy and recovery characteristics of desflurane versus propofol for anaesthesia in an older day surgery population , 1997 .

[99]  M. Blagrove,et al.  Dreams, images and emotions associated with propofol anaesthesia , 1997, Anaesthesia.

[100]  C. Ries,et al.  Midazolam Premedication Delays Recovery After Propofol Without Modifying Involuntary Movements , 1997, Anesthesia and analgesia.

[101]  M. Harmer,et al.  Single‐breath inhalation induction of sevoflurane anaesthesia with and without nitrous oxide: a feasibility study in adults and comparison with an intravenous bolus of propofol , 1997, Anaesthesia.

[102]  I. Smith,et al.  Inhalation induction with sevoflurane: a double-blind comparison with propofol. , 1997, British journal of anaesthesia.

[103]  J. Jakobsson,et al.  Anaesthesia during laparoscopic gynaecological surgery: a comparison between desflurane and isoflurane. , 1997, European journal of anaesthesiology.

[104]  K. Korttila,et al.  Recovery and outcome after propofol and isoflurane anesthesia in patients undergoing laparoscopic hysterectomy , 1997, Acta anaesthesiologica Scandinavica.

[105]  M. Tramèr,et al.  Propofol anaesthesia and postoperative nausea and vomiting: quantitative systematic review of randomized controlled studies. , 1997, British journal of anaesthesia.

[106]  J. Lerman,et al.  Parental perceptions, expectations and preferences for the postanaesthetic recovery of children , 1997, Paediatric anaesthesia.

[107]  B. Jawan,et al.  Comparison of sevoflurane with halothane in pediatric ambulatory anesthesia: an experience in Taiwan. , 1997, Acta anaesthesiologica Sinica.

[108]  G. Cooper,et al.  Comparison of induction and recovery between sevoflurane and halothane supplementation of anaesthesia in children undergoing outpatient dental extractions. , 1997, British journal of anaesthesia.

[109]  F. Orr,et al.  Desflurane for outpatient general anesthesia in third molar extraction cases. , 1997, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[110]  M. Struys,et al.  Comparison of computer‐controlled administration of propofol with two manually controlled infusion techniques , 1997, Anaesthesia.

[111]  J. Divatia,et al.  Omission of Nitrous Oxide during Anesthesia Reduces the Incidence of Postoperative Nausea and Vomiting: A Meta-Analysis , 1996, Anesthesiology.

[112]  F. Chung,et al.  Postoperative symptoms 24 hours after ambulatory anaesthesia , 1996, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[113]  S. Slogoff,et al.  Recovery After Propofol With and Without Intraoperative Fentanyl in Patients Undergoing Ambulatory Gynecologic Laparoscopy , 1996, Anesthesia and analgesia.

[114]  U. Ruttimann,et al.  Comparison of Emergence and Recovery Characteristics of Sevoflurane, Desflurane, and Halothane in Pediatric Ambulatory Patients , 1996, Anesthesia and analgesia.

[115]  E. Doyle,et al.  Validation of three paediatric pain scores for use by parents , 1996, Anaesthesia.

[116]  D. Meyer,et al.  Site of service, anesthesia, and postoperative practice patterns for oculoplastic and orbital surgeries. , 1996, Ophthalmology.

[117]  K. Nkyekyer.  Day-Case Laparoscopy in a Ghanaian Teaching Hospital: The Patients' Perspective , 1996, Tropical doctor.

[118]  K. Korttila,et al.  Awakening, Clinical Recovery, and Psychomotor Effects After Desflurane and Propofol Anesthesia , 1996, Anesthesia and analgesia.

[119]  T O Jefferson,et al.  Guidelines for authors and peer reviewers of economic submissions to the BMJ , 1996, BMJ.

[120]  G. S. Robertson,et al.  Comparison of propofol and a propofol-methohexitone mixture for induction of day-case anaesthesia. , 1996, British journal of anaesthesia.

[121]  Amiram Gafni,et al.  When Do the "Dollars" Make Sense? , 1996, Medical decision making : an international journal of the Society for Medical Decision Making.

[122]  M. Cohen,et al.  Propofol: an alternative general anesthetic for outpatient oral surgery. , 1996, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[123]  T. Standl,et al.  Propofol reduces emesis after sufentanil supplemented anaesthesia in paediatric squint surgery , 1996, Acta anaesthesiologica Scandinavica.

[124]  A. Mackersie,et al.  A comparison of the induction characteristics of sevoflurane and halothane in children , 1996, Anaesthesia.

[125]  J. Lerman,et al.  Induction, Recovery, and Safety Characteristics of Sevoflurane in Children Undergoing Ambulatory Surgery: A Comparison with Halothane , 1996, Anesthesiology.

[126]  T. Taivainen,et al.  Sevoflurane-nitrous oxide or halothane-nitrous oxide for paediatric bronchoscopy and gastroscopy. , 1996, British journal of anaesthesia.

[127]  P. Myles,et al.  Postoperative Nausea and Vomiting. Propofol or Thiopentone: Does Choice of Induction Agent Affect Outcome? , 1996, Anaesthesia and intensive care.

[128]  G. Gillies,et al.  Induction of anaesthesia with midazolam and a target‐controlled propofol infusion , 1996, Anaesthesia.

[129]  D. Otte,et al.  Patients' perspectives and experiences of day case surgery. , 1996, Journal of advanced nursing.

[130]  D. O'Hara,et al.  The Effects of Sevoflurane and Isoflurane on Recovery from Outpatient Surgery , 1996, Pharmacotherapy.

[131]  P. Ryhänen,et al.  Behavioural changes and children's memories after intravenous, inhalation and rectal induction of anaesthesia , 1996, Paediatric anaesthesia.

[132]  M. Law.  A telephone survey of day-surgery eye patients. , 1996, Journal of advanced nursing.

[133]  M. Enlund,et al.  A cost‐benefit evaluation of using propofol and alfentanil for a short gynecological procedure , 1996, Acta anaesthesiologica Scandinavica.

[134]  A. Wolf,et al.  Recovery after desflurane anaesthesia in the infant: comparison with isoflurane. , 1996, British journal of anaesthesia.

[135]  K. Korttila,et al.  Recovery Profile After Desflurane With or Without Ondansetron Compared With Propofol in Patients Undergoing Outpatient Gynecological Laparoscopy , 1996, Anesthesia and analgesia.

[136]  C. Lien,et al.  The Comparative Effects of Sevoflurane Versus Propofol in the Induction and Maintenance of Anesthesia in Adult Patients , 1996, Anesthesia and analgesia.

[137]  J. Gross,et al.  Sevoflurane Versus Isoflurane: Induction and Recovery Characteristics with Single-Breath Inhaled Inductions of Anesthesia , 1996, Anesthesia and analgesia.

[138]  T. Sidhu,et al.  Desflurane is not associated with faster operating room exit times in outpatients. , 1996, Journal of clinical anesthesia.

[139]  G. Rudkin,et al.  Review of Efficiencies and Patient Satisfaction in Australian and New Zealand Day Surgery Units: A Pilot Study , 1996, Anaesthesia and intensive care.

[140]  M. Tramèr,et al.  Omitting nitrous oxide in general anaesthesia: meta-analysis of intraoperative awareness and postoperative emesis in randomized controlled trials. , 1996, British journal of anaesthesia.

[141]  A. Asbury,et al.  Cognitive failures after general anaesthesia for day-case surgery. , 1996, British journal of anaesthesia.

[142]  F. Ling,et al.  A comparison of the cost of local versus general anesthesia for laparoscopic sterilization in an operating room setting. , 1996, The Journal of the American Association of Gynecologic Laparoscopists.

[143]  E. M. Kurpiers,et al.  Cost-effective anesthesia: desflurane versus propofol in outpatient surgery. , 1996, AANA journal.

[144]  I. Moilanen,et al.  Behavioural changes following routine ENT operations in two‐to‐ten‐year‐old children , 1996, Paediatric anaesthesia.

[145]  F Dexter,et al.  Decreases in Anesthesia-Controlled Time Cannot Permit One Additional Surgical Operation to Be Reliably Scheduled During the Workday , 1995, Anesthesia and analgesia.

[146]  P. White,et al.  The role of sevoflurane in outpatient anesthesia. , 1995, Anesthesia and analgesia.

[147]  P. White,et al.  Sevoflurane Versus Desflurane for Outpatient Anesthesia: A Comparison of Maintenance and Recovery Profiles , 1995, Anesthesia and analgesia.

[148]  F. Dexter,et al.  The Cost Efficacy of Hypothetically Eliminating Adverse Anesthetic Outcomes from High-Risk, but Neither Low- nor Moderate-Risk, Surgical Operations , 1995, Anesthesia and analgesia.

[149]  G. Park,et al.  Propofol versus propofol with midazolam for laryngeal mask insertion. , 1995, European journal of anaesthesiology. Supplement.

[150]  J. Whitwam.  Co-induction of anaesthesia: day-case surgery. , 1995, European journal of anaesthesiology. Supplement.

[151]  J. Abbott,et al.  Psychological and cardiovascular predictors of anaesthesia induction, operative and post-operative complications in minor gynaecological surgery. , 1995, The British journal of clinical psychology.

[152]  C. Lennmarken,et al.  Assessment of recovery following day‐case arthroscopy , 1995, Anaesthesia.

[153]  A. A. van den Berg,et al.  Comparison of Total Intravenous, Balanced Inhalational and Combined Intravenous-Inhalational Anaesthesia for Tympanoplasty, Septorhinoplasty and Adenotonsillectomy , 1995, Anaesthesia and intensive care.

[154]  M. Nathanson,et al.  Sevoflurane for Outpatient Anesthesia: A Comparison with Propofol , 1995, Anesthesia and analgesia.

[155]  S. Shalansky,et al.  Pharmacoeconomics of propofol versus thiopental for induction of anaesthesia in short procedures. , 1995, The Canadian journal of hospital pharmacy.

[156]  D. Sackett,et al.  Inpatient general medicine is evidence based , 1995, The Lancet.

[157]  L. Welborn,et al.  Comparison of sevoflurane and halothane anesthesia in children undergoing outpatient ear, nose, and throat surgery. , 1995, Journal of clinical anesthesia.

[158]  F. Dexter,et al.  Comparisons between desflurane and isoflurane or propofol on time to following commands and time to discharge : a metaanalysis , 1995 .

[159]  D. O'Hara,et al.  Cost analysis of propofol versus thiopental induction anesthesia in outpatient laparoscopic gynecologic surgery. , 1995, Clinical therapeutics.

[160]  M. Nakayama,et al.  Comparison of haemodynamic changes induced by sevoflurane and halothane in paediatric patients , 1995, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[161]  R. McDowall,et al.  Total intravenous anesthesia for children undergoing brief diagnostic or therapeutic procedures. , 1995, Journal of clinical anesthesia.

[162]  E. Jensen,et al.  The influence of nitrous oxide on propofol dosage and recovery after total intravenous anaesthesia for day‐case surgery , 1995, Anaesthesia.

[163]  P. Reber,et al.  Patient satisfaction and postoperative demands on hospital and community services after day surgery , 1995, The British journal of surgery.

[164]  J. Jakobsson,et al.  Anaesthesia for short outpatient procedures. A comparison between thiopentone and propofol in combination with fentanyl or alfentanil , 1995, Acta anaesthesiologica Scandinavica.

[165]  B. Finegan,et al.  Changing the admission process for elective surgery: an economic analysis , 1995, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[166]  G. Johannesson,et al.  Sevoflurane for ENT‐surgery in children A comparison with halothane , 1995, Acta anaesthesiologica Scandinavica.

[167]  F. Chung.  Recovery Pattern and Home-Readiness After Ambulatory Surgery , 1995, Anesthesia and analgesia.

[168]  M. Linden,et al.  Anaesthesia for urological endoscopic procedures in adult outpatients. , 1995, European journal of anaesthesiology.

[169]  K. Korttila,et al.  Recovery from sevoflurane and isoflurane anaesthesia after outpatient gynaecological laparoscopy , 1995, Acta anaesthesiologica Scandinavica.

[170]  W. Splinter,et al.  Nitrous oxide does not increase vomiting in children after myringotomy , 1995, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[171]  J. Pearson,et al.  How successful is varicose vein surgery? A patient outcome study following varicose vein surgery using the SF-36 Health Assessment Questionnaire. , 1995, European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery.

[172]  A. Moffat,et al.  Comparison of two standard techniques of general anaesthesia for day-case cataract surgery. , 1995, British journal of anaesthesia.

[173]  S. Malviya,et al.  Vomiting After Outpatient Tonsillectomy and Adenoidectomy in Children: The Role of Nitrous Oxide , 1995, Anesthesia and analgesia.

[174]  J. G. Jones,et al.  A method of costing anaesthetic practice , 1995, Anaesthesia.

[175]  Z. Kain,et al.  A first-pass cost analysis of propofol versus barbiturates for children undergoing magnetic resonance imaging. , 1994, Anesthesia and analgesia.

[176]  J. Gintautas,et al.  Propofol, thiopental sodium and fentanyl effects on patient recovery from anesthesia , 1994, Regulatory Peptides.

[177]  I. Murat,et al.  Induction and recovery characteristics and hemodynamic responses to sevoflurane and halothane in children. , 1994, Anesthesia and analgesia.

[178]  D. Fenton-Lee,et al.  Patient acceptance of day surgery. , 1994, Annals of the Royal College of Surgeons of England.

[179]  A. Asbury,et al.  Patient knowledge of anaesthesia and peri‐operative care , 1994, Anaesthesia.

[180]  M. V. Shah,et al.  A comparison of the effect on gastric emptying of either enflurane or propofol given during maintenance of anaesthesia for minor surgery , 1994, Anaesthesia.

[181]  M. Johannesson,et al.  The Willingness to Pay for In Vitro Fertilization: A Pilot Study Using Contingent Valuation , 1994, Medical care.

[182]  J. Horrow,et al.  Propofol reduces prolonged outpatient PACU stay. An analysis according to surgical procedure. , 1994, Anesthesiology review.

[183]  E. Faragher,et al.  Recovery after oral surgery with halothane, enflurane, isoflurane or propofol anaesthesia. , 1994, British journal of anaesthesia.

[184]  R. Sukhani,et al.  Propofol for ambulatory gynecologic laparoscopy: does omission of nitrous oxide alter postoperative emetic sequelae and recovery? , 1994, Anesthesia and analgesia.

[185]  D. Galletly,et al.  Effect of halothane, isoflurane and fentanyl on spectral components of heart rate variability. , 1994, British journal of anaesthesia.

[186]  F. McGowan,et al.  Recovery Characteristics of Desflurane Versus Halothane for Maintenance of Anesthesia in Pediatric Ambulatory Patients , 1994, Anesthesiology.

[187]  M. D. Cobcroft,et al.  Awareness under Anaesthesia: The Patients’ Point of View , 1993, Anaesthesia and intensive care.

[188]  Richard T. Carson,et al.  The Issue of Scope in Contingent Valuation Studies , 1993 .

[189]  L. Jonsson,et al.  Nausea: the most important factor determining length of stay after ambulatory anaesthesia. A comparative study of isoflurane and/or propofol techniques , 1993, Acta anaesthesiologica Scandinavica.

[190]  J. Jakobsson,et al.  Patient evaluation of four different combinations of intravenous anaesthetics for short outpatient procedures , 1993, Anaesthesia.

[191]  P. White,et al.  Recovery following outpatient anesthesia: use of enflurane versus propofol. , 1993, Journal of clinical anesthesia.

[192]  D. E. Bach,et al.  A comparison of propofol with methohexital and isoflurane in two general anesthetic techniques. , 1993, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[193]  C. Montgomery,et al.  Propofol anaesthesia reduces early post-operative emesis after paediatric strabismus surgery , 1993, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[194]  R. Thisted,et al.  Effects on recovery when isoflurane is used to supplement propofol-nitrous oxide anesthesia. , 1993, Anesthesia and analgesia.

[195]  T. Ebert,et al.  Sympathetic Hyperactivity during Desflurane Anesthesia in Healthy Volunteers: A Comparison with Isoflurane , 1993, Anesthesiology.

[196]  G. A. Osborne,et al.  Outcomes after same-day oral surgery: a review of 1,180 cases at a major teaching hospital. , 1993, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[197]  L. Borgquist,et al.  Willingness to pay for lipid lowering: a health production function approach , 1993 .

[198]  M. Winwood,et al.  Anxiety levels following anaesthesia for day‐case surgery , 1993, Anaesthesia.

[199]  P. White,et al.  Muscle pain after outpatient laparoscopy--influence of propofol versus thiopental and enflurane. , 1993, Anesthesia and analgesia.

[200]  K.,et al.  Desflurane versus propofol anesthesia: a comparative analysis in outpatients. , 1993, Anesthesia and analgesia.

[201]  P. Reynolds,et al.  Propofol infusion and the incidence of emesis in pediatric outpatient strabismus surgery. , 1993, Anesthesia and analgesia.

[202]  P. Mallucci,et al.  The Influence of Effective Analgesia and General Anaesthesia on Patients' Acceptance of Day Case Varicose Vein Surgery , 1993 .

[203]  N. Morton,et al.  Comparison of recovery from anaesthesia induced in children with either propofol or thiopentone. , 1993, British journal of anaesthesia.

[204]  P. Axt,et al.  Propofol requirements for induction of anesthesia in children of different age groups. , 1992, Anesthesia and analgesia.

[205]  B. Lim,et al.  Total Intravenous Anaesthesia versus Inhalational Anaesthesia for Dental Day Surgery , 1992, Anaesthesia and intensive care.

[206]  M. Nessly,et al.  Comparison of desflurane with propofol in outpatients undergoing peripheral orthopedic surgery. , 1992, Anesthesia and analgesia.

[207]  F. Sjöberg,et al.  Thiopentone or propofol for induction of isoflurane‐based anaesthesia for ambulatory surgery? , 1992, Acta anaesthesiologica Scandinavica.

[208]  K. Korttila,et al.  Comparison of eltanolone and propofol in anesthesia for termination of pregnancy. , 1992, Anesthesia and analgesia.

[209]  B. Philip,et al.  Patients' assessment of ambulatory anesthesia and surgery. , 1992, Journal of clinical anesthesia.

[210]  J. Saxe,et al.  The influence of an anesthetic regimen on patient care, outcome, and hospital charges. , 1992, The American surgeon.

[211]  J. Valanne,et al.  Recovery and discharge of patients after long propofol infusion vs isoflurane anaesthesia for ambulatory surgery , 1992, Acta anaesthesiologica Scandinavica.

[212]  P. Suadicani,et al.  Recovery following thiopentone or propofol anaesthesia assessed by computerized coordination measurements , 1992, Acta anaesthesiologica Scandinavica.

[213]  P. Bajorek,et al.  Recovery characteristics using isoflurane or propofol for maintenance of anaesthesia: a double‐blind controlled trial , 1992, Anaesthesia.

[214]  G. A. Osborne,et al.  Double-blind Comparison of Patient Recovery after Induction with Propofol or Thiopentone for Day-case Relaxant General Anaesthesia , 1992, Anaesthesia and intensive care.

[215]  K. Korttila,et al.  Clinical recovery and psychomotor function after brief anesthesia with propofol or thiopental. , 1992, Anesthesiology.

[216]  G. Randel,et al.  Propofol versus thiamylal-enflurane anesthesia for outpatient laparoscopy. , 1992, Journal of clinical anesthesia.

[217]  W. Tweed,et al.  The Canadian four-centre study of anaesthetic outcomes: II. Can outcomes be used to assess the quality of anaesthesia care? , 1992, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[218]  T. Ledin,et al.  Psychomotor recovery following propofol or isoflurane anaesthesia for day‐care surgery , 1992, Acta anaesthesiologica Scandinavica.

[219]  J. Nightingale,et al.  Recovery from day-case anaesthesia: comparison of total i.v. anaesthesia using propofol with an inhalation technique. , 1992, British journal of anaesthesia.

[220]  B. Asgeirsson,et al.  Propofol‐fentanyl anesthesia compared to thiopental‐halothane with special reference to recovery and vomiting after pediatric strabismus surgery * , 1992, Acta anaesthesiologica Scandinavica.

[221]  K. Shingu,et al.  Comparison between sevoflurane and halothane for paediatric ambulatory anaesthesia. , 1991, British journal of anaesthesia.

[222]  P. Sebel,et al.  Psychomotor performance after desflurane anesthesia: a comparison with isoflurane. , 1991, Anesthesia and analgesia.

[223]  Y. Sung,et al.  The differential cost of anesthesia and recovery with propofol-nitrous oxide anesthesia versus thiopental sodium-isoflurane-nitrous oxide anesthesia. , 1991, Journal of clinical anesthesia.

[224]  J. Schierbeck,et al.  Total intravenous anaesthesia with propofol or etomidate. , 1991, European journal of anaesthesiology.

[225]  P. White,et al.  Use of desflurane for outpatient anesthesia. A comparison with propofol and nitrous oxide. , 1991, Anesthesiology.

[226]  P. White,et al.  Effect of propofol on the incidence of postoperative vomiting after strabismus surgery in pediatric outpatients. , 1991, Anesthesiology.

[227]  R. M. Jones,et al.  Induction and recovery characteristics of desflurane in day case patients: A comparison with propofol , 1991, Anaesthesia.

[228]  E. Harju.  Patient satisfaction among day surgery patients in a central hospital. , 1991, Quality assurance in health care : the official journal of the International Society for Quality Assurance in Health Care.

[229]  M. Rosen,et al.  Propofol in short gynaecological procedures , 1991, Anaesthesia.

[230]  P. Morley,et al.  Is Propofol Cost-Effective for Day-Surgery Patients? , 1991, Anaesthesia and intensive care.

[231]  H. Kashtan,et al.  Comparative evaluation of propofol and thiopentone for total intravenous anaesthesia. , 1990, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[232]  P. O. Huma.  A comparison of diprivan and thiopentone when used as induction agents for short surgical procedures. , 1990, East African medical journal.

[233]  E. Spitznagel,et al.  Nitrous oxide, nausea, and vomiting after outpatient gynecologic surgery. , 1990, Journal of clinical anesthesia.

[234]  C. Johnston,et al.  Preoperative parental anxiety predicts behavioural and emotional responses to induction of anaesthesia in children , 1990, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[235]  A. Baraka,et al.  Propofol versus thiopentone for induction of anesthesia in patients undergoing outpatient surgery. , 1989, Middle East journal of anaesthesiology.

[236]  K. Power.  Anaesthesia for day case oral surgery. , 1989, The British journal of oral & maxillofacial surgery.

[237]  J. McWilliam.  The costs of propofol in day surgery , 1989, Anaesthesia.

[238]  P. Hatch,et al.  A Comparison of Alfentanil, Halothane and Enflurane as Supplements for Outpatient Urological Surgery , 1989, Anaesthesia and intensive care.

[239]  L. Djärv,et al.  Anesthesia with alfentanil and methohexitone for short gynecological surgery , 1989, Acta anaesthesiologica Scandinavica.

[240]  L. Mackeigan,et al.  Development and Validation of an Instrument to Measure Patient Satisfaction with Pharmacy Services , 1989, Medical care.

[241]  J. Hovorka,et al.  Nitrous oxide does not increase nausea and vomiting following gynaecological laparoscopy , 1989, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[242]  J. Kaplan,et al.  Comparison of propofol and thiamylal for induction and maintenance of anaesthesia for outpatient surgery. , 1988, British journal of anaesthesia.

[243]  G. Edelist,et al.  Comparison of alfentanil, fentanyl and enflurane as supplements to general anaesthesia for outpatient gynaecologic surgery , 1988, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[244]  R. Hannallah,et al.  TESTING THE VALIDITY OF AN OBJECTIVE PAIN SCALE FOB INFANTS AND CHILDREN , 1988 .

[245]  J. Ponte,et al.  Comparison of a total intravenous anaesthetic technique using a propofol infusion, with an inhalational technique using enflurane for day case surgery , 1988, Anaesthesia.

[246]  J. Scaife,et al.  A comparison of the outcome of day-care and inpatient treatment of paediatric surgical cases. , 1988, Journal of child psychology and psychiatry, and allied disciplines.

[247]  D. White,et al.  Propofol and emesis , 1988, Anaesthesia.

[248]  O. Stenqvist,et al.  Comparison of costs of different anaesthetic techniques , 1988, Acta anaesthesiologica Scandinavica.

[249]  B. Melnick,et al.  Effects of eliminating nitrous oxide in outpatient anesthesia. , 1987, Anesthesiology.

[250]  J. Egmond,et al.  Anaesthesia for laparoscopy , 1987, Anaesthesia.

[251]  K. Offord,et al.  Role of Nitrous Oxide and Other Factors in Postoperative Nausea and Vomiting: A Randomized and Blinded Prospective Study , 1987, Anesthesiology.

[252]  D. Altman,et al.  STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT , 1986, The Lancet.

[253]  P. Sebel,et al.  A comparison between isoflurane and alfentanil supplemented anaesthesia for short procedures , 1985, Anaesthesia.

[254]  I. Grant,et al.  Comparison of the new emulsion formulation of propofol with methohexitone and thiopentone for induction of anaesthesia in day cases. , 1985, British journal of anaesthesia.

[255]  B. McNeil,et al.  Probabilistic Sensitivity Analysis Using Monte Carlo Simulation , 1985, Medical decision making : an international journal of the Society for Medical Decision Making.

[256]  A. Holland,et al.  Morbidity in minor gynaecological surgery: a comparison of halothane, enflurane and isoflurane. , 1982, British journal of anaesthesia.

[257]  D. Quinton,et al.  Unit Costs of Health and Social Care 2004 , 2004 .

[258]  C. Wandel,et al.  Recovery characteristics following anaesthesia with sevoflurane or propofol in adults undergoing out-patient surgery , 2004, European Journal of Clinical Pharmacology.

[259]  M. Dijk.  The Toddler-Preschooler Postoperative Pain Scale : An observational scale for measuring postoperative pain , 2002 .

[260]  M. Tully,et al.  Eliciting Women's Preferences in Day Surgery Anaesthesia , 2000 .

[261]  P. Myles,et al.  Validity and reliability of a postoperative quality of recovery score: the QoR-40. , 2000, British journal of anaesthesia.

[262]  P. Myles,et al.  Patient satisfaction after anaesthesia and surgery: results of a prospective survey of 10,811 patients. , 2000, British journal of anaesthesia.

[263]  T. Kangas-Saarela.  Patients' experiences of day surgery—an approach to quality control , 1999 .

[264]  A H Briggs,et al.  Handling uncertainty when performing economic evaluation of healthcare interventions. , 1999, Health technology assessment.

[265]  J. Greenberg,et al.  Recovery characteristics of sevoflurane and halothane in preschool-aged children undergoing bilateral myringotomy and pressure equalization tube insertion. , 1999, Anesthesia and analgesia.

[266]  A. Macario,et al.  Which clinical anesthesia outcomes are important to avoid? The perspective of patients. , 1999, Anesthesia and analgesia.

[267]  P. Tarkkila,et al.  Sevoflurane-maintained anesthesia induced with propofol or sevoflurane in small children: induction and recovery characteristics , 1999, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[268]  J. Boldt,et al.  Cost analysis of target-controlled infusion-based anesthesia compared with standard anesthesia regimens. , 1999, Anesthesia and analgesia.

[269]  M J Buxton,et al.  Evaluating patient-based outcome measures for use in clinical trials. , 1998, Health technology assessment.

[270]  R. Moore,et al.  Postoperative analgesia and vomiting, with special reference to day-case surgery: a systematic review. , 1998, Health technology assessment.

[271]  M. Rieker,et al.  A comparison of the recovery times of desflurane and isoflurane in outpatient anesthesia. , 1998, AANA journal.

[272]  K. Cheng,et al.  Anesthesia for pediatric herniorrhaphy or hydrocelectomy: comparison of propofol/ketamine and thiopentone/halothane. , 1998, Journal of the Formosan Medical Association = Taiwan yi zhi.

[273]  Anaesthesia under examination. , 1998, Nursing standard (Royal College of Nursing (Great Britain) : 1987).

[274]  B. Philip.  New approaches to anesthesia for day case surgery. , 1997, Acta anaesthesiologica Belgica.

[275]  J. Baron.  Biases in the quantitative measurement of values for public decisions , 1997 .

[276]  F. Camu,et al.  Cost containment in inhalation anesthesia: the best way. , 1997, Acta anaesthesiologica Belgica.

[277]  J. J. Beebe.  Sevoflurane use in Veterans Affairs medical centers: utility, safety, and cost-effectiveness. , 1997, AANA journal.

[278]  I. Barker,et al.  A comparison of thiopentone/isoflurane anaesthesia vs propofol infusion in children having repeat minor haematological procedures , 1997, Paediatric anaesthesia.

[279]  K. Korttila,et al.  Propofol Pharmacoeconomic Appraisal of its Use in Day Case Surgery , 1996 .

[280]  A Prasad,et al.  Day case laparoscopic cholecystectomy: a safe and cost effective procedure. , 1996, The European journal of surgery = Acta chirurgica.

[281]  A. L. Robinson,et al.  A comparison between total intravenous anaesthesia using a propofol/alfentanil mixture and an inhalational technique for laparoscopic gynaecological sterilization. , 1996, European journal of anaesthesiology.

[282]  G. Joshi.  Cost comparison: a desflurane- versus a propofol-based general anesthetic technique. , 1995, Anesthesia and analgesia.

[283]  A. Lake,et al.  Propofol as the sole agent for paediatric day case dental surgery. , 1995, Anaesthesia.

[284]  M. Lévěque,et al.  Postoperative nausea and vomiting: a comparison of propofol infusion versus isoflurane inhalational technique for laparoscopic patients. , 1995, AANA journal.

[285]  M. Oikkonen.  Propofol vs isoflurane for gynaecological laparoscopy. , 1994, Acta anaesthesiologica Scandinavica.

[286]  J. Millar,et al.  Day-case laparoscopy revisited: have post-operative morbidity and patient acceptance improved? , 1994, Health trends.

[287]  R. Hannallah,et al.  Propofol anaesthesia in paediatric ambulatory patients: a comparison with thiopentone and halothane , 1994, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[288]  H. Van Aken,et al.  Propofol-nitrous oxide versus thiopental sodium-isoflurane-nitrous oxide for strabismus surgery in children. , 1993, Journal of clinical anesthesia.

[289]  S. Nicolson,et al.  Propofol anesthesia reduces emesis and airway obstruction in pediatric outpatients. , 1993, Anesthesia and analgesia.

[290]  E. Sherry,et al.  Total intravenous anaesthesia with propofol and alfentanil protects against postoperative nausea and vomiting , 1992, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[291]  Y. Sung.  Propofol as induction and maintenance anesthesia in comparison with other intravenous or inhalational agents : economic implications , 1992 .

[292]  A. Coetzee,et al.  Behavioural changes in children following minor surgery--is premedication beneficial? , 1992, Acta anaesthesiologica Belgica.

[293]  B. Wetchler,et al.  Recovery from the use of propofol for maintenance of anesthesia during short ambulatory procedures , 1992 .

[294]  M. Johannesson,et al.  Willingness to pay for antihypertensive therapy--results of a Swedish pilot study. , 1991, Journal of health economics.

[295]  K. Karp.  Anesthetic recovery after ambulatory laparoscopy: a comparison of isoflurane and alfentanil infusion. , 1990, AANA journal.

[296]  N. Black,et al.  Day surgery: development of a questionnaire for eliciting patients' experiences , 2022 .