N. Okun

N. Okun, Jo-Ann K. Brock, J. Carroll, 2015, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Performance of a universal prenatal screening program incorporating cell-free fetal DNA analysis in Ontario, Canada

Tianhua Huang, N. Okun, H. Howley, 2021, Canadian Medical Association Journal.

Trends in the use of prenatal testing services for fetal aneuploidy in Ontario: a descriptive study.

Tianhua Huang, N. Okun, M. Walker, 2018, CMAJ open.

Enhanced First Trimester Screening for Trisomy 21 with Contingent Cell-Free Fetal DNA: A Comparative Performance and Cost Analysis.

Tianhua Huang, W. Meschino, N. Okun, 2017, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Randomised trial to assess safety and fetal outcome of early and midtrimester amniocentesis

N. Okun, A. Summers, M. Desrochers, 1998, The Lancet.

Resistance exercise decreases the need for insulin in overweight women with gestational diabetes mellitus.

N. Okun, E. Ryan, B. Mitchell, 2004, American journal of obstetrics and gynecology.

Management of Twin Pregnancies (Part 1)

Joshua R. Smith, L. Keith, D. Young, 2000 .

Beals syndrome (congenital contractural arachnodactyly): prenatal ultrasound findings and molecular analysis

N. Okun, D. Chitayat, A. Toi, 2014, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

The price of performance: a cost and performance analysis of the implementation of cell‐free fetal DNA testing for Down syndrome in Ontario, Canada

Tianhua Huang, N. Okun, C. Dewa, 2014, Prenatal diagnosis.

Is Maternal Obesity a Predictor of Shoulder Dystocia?

N. Okun, D. Mayes, N. Bott, 2003, Obstetrics and gynecology.

Polytopic anomalies with agenesis of the lower vertebral column.

E. Zackai, J. Opitz, S. Mundlos, 1999, American journal of medical genetics.

Joint SOGC-CCMG Opinion for Reproductive Genetic Carrier Screening: An Update for All Canadian Providers of Maternity and Reproductive Healthcare in the Era of Direct-to-Consumer Testing.

N. Okun, D. Chitayat, C. V. van Karnebeek, 2016, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Crohn's disease, pregnancy, and birth weight

N. Okun, M. Moser, D. Mayes, 2000, American Journal of Gastroenterology.

First-trimester placental thickness and the risk of preeclampsia or SGA.

J. Kingdom, N. Okun, E. Bujold, 2017, Placenta.

Screening for placental insufficiency in high-risk pregnancies: is earlier better?

J. Kingdom, N. Okun, J. Dodd, 2008, Placenta.

No. 348-Joint SOGC-CCMG Guideline: Update on Prenatal Screening for Fetal Aneuploidy, Fetal Anomalies, and Adverse Pregnancy Outcomes.

N. Okun, D. Chitayat, Isabelle De Bie, 2017, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

The price of performance: a cost and performance analysis of the implementation of cell‐free fetal DNA testing for Down syndrome in Ontario, Canada

Tianhua Huang, N. Okun, C. Dewa, 2014, Prenatal diagnosis.

Pregnancy outcomes in women with polycystic ovary syndrome undergoing in vitro fertilization.

N. Okun, E. Greenblatt, Jennifer Liu, 2016, Fertility and sterility.

Cerclage for the short cervix demonstrated by transvaginal ultrasound: current practice and opinion.

N. Okun, M. Hannah, D. McKay, 2004, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Is Transperineal Ultrasonography of Cervical Length in Pregnant Women as Accurate as Endovaginal Ultrasonography? A Prospective, Blinded Comparison of Level of Agreement of Two Techniques

N. Okun, D. Mayes, N. Demianczuk, 2001 .

Cost‐effectiveness of noninvasive fetal RhD blood group genotyping in nonalloimmunized and alloimmunized pregnancies

N. Okun, G. Charames, O. Gajic-Veljanoski, 2022, Transfusion.

Pregnancy outcomes after assisted human reproduction.

N. Okun, Sony Sierra, 2014, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Pre-conception Folic Acid and Multivitamin Supplementation for the Primary and Secondary Prevention of Neural Tube Defects and Other Folic Acid-Sensitive Congenital Anomalies.

N. Okun, S. Langlois, L. Dodds, 2015, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Noninvasive Fetal RhD Blood Group Genotyping: A Systematic Review of Economic Evaluations.

N. Okun, O. Gajic-Veljanoski, N. Sikich, 2021, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

The impact of maternal weight discrepancies on prenatal screening results for Down syndrome

Tianhua Huang, B. Hoffman, W. Meschino, 2013, Prenatal diagnosis.

Success of a program of routine prenatal screening for hepatitis B surface antigen: the first 2 years.

N. Okun, J. Waters, M. Joffres, 1990, CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne.

The Ontario Birth Study: A prospective pregnancy cohort study integrating perinatal research into clinical care

N. Okun, J. Jenkins, J. Knight, 2018, Paediatric and perinatal epidemiology.

Placental size and the prediction of severe early‐onset intrauterine growth restriction in women with low pregnancy‐associated plasma protein‐A

N. Okun, D. Chitayat, S. Keating, 2009, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Combinations of maternal serum markers to predict preeclampsia, small for gestational age, and stillbirth: a systematic review.

J. Kingdom, N. Okun, P. Shah, 2012, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Treatment options in fetomaternal hemorrhage: four case studies.

J. Kingdom, N. Okun, E. Kelly, 2004, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Effectiveness of cervical cerclage for a sonographically shortened cervix: a systematic review and meta-analysis.

N. Okun, M. Hannah, R. Windrim, 2003, American journal of obstetrics and gynecology.

Emergency Cerclage: Literature Review

N. Okun, S. Porat, D. Farine, 2013, Obstetrical & gynecological survey.

Comparing Maternal Serum Screening Markers Among IVF and Spontaneous Conceptions in Ontario Through Registry Data.

Tianhua Huang, N. Okun, B. Potter, 2018, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Informed Decision-Making in the Context of Prenatal Chromosomal Microarray

N. Okun, D. Chitayat, C. Shuman, 2018, Journal of Genetic Counseling.

Antepartum Screening for Maternal Infection and Immune Status: Is it Time to Broaden Our Routine?

N. Okun, K. Murphy, M. Yudin, 2015, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prevalence of Rheumatic Heart Disease and Other Cardiac Conditions in Low-Risk Pregnancies in Kenya: A Prospective Echocardiography Screening Study

G. Bloomfield, N. Okun, C. Silversides, 2021, Global heart.

Retrospective review of diagnostic performance of intracranial translucency in detection of open spina bifida at the 11–13‐week scan

N. Okun, A. Toi, K. Fong, 2011, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Early Motor Development of Breech‐ and Cephalic‐Presenting Infants

N. Okun, D. Bartlett, P. Byrne, 2000, Obstetrics and gynecology.

Breech Presentation: a Random Event 01 an Explainable Phenomenon?

N. Okun, D. Bartlett, 1994, Developmental medicine and child neurology.

Maternal cell contamination of amniotic fluid samples obtained by open needle versus trocar technique of amniocentesis.

N. Okun, D. Mayes, H. Steed, 2002, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prospective experience with integrated prenatal screening and first trimester combined screening for trisomy 21 in a large Canadian urban center

Tianhua Huang, B. Hoffman, N. Okun, 2008, Prenatal diagnosis.

The Role of the Support Individual in Active Caring During Childbirth

N. Okun, N. Demianczuk, R. Chari, 1997 .

Primitive reflexes and the determination of fetal presentation at birth.

N. Okun, D. Bartlett, P. Byrne, 1997, Early human development.

7: The Twin Birth Study: a multicenter RCT of planned cesarean section (CS) and planned vaginal birth (VB) for twin pregnancies 320 to 386/7 weeks

A. Gafni, K. Joseph, A. Allen, 2012 .

A randomized controlled trial of strict glycemic control and tertiary level obstetric care versus routine obstetric care in the management of gestational diabetes: a pilot study.

N. Okun, E. Keely, S. Perkins, 1997, American journal of obstetrics and gynecology.

Prenatal ultrasonographic diagnosis of dicephalus conjoined twins.

N. Okun, D. Hammond, B. Carpenter, 1991, Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes.

Ultrasound in Twin Pregnancies

N. Okun, S. Langlois, V. Senikas, 2011 .

A 2‐year review of publicly funded cell‐free DNA screening in Ontario: utilization and adherence to funding criteria

Tianhua Huang, N. Okun, M. Walker, 2020, Prenatal diagnosis.

Equitable delivery of expanded genetic technologies: Considerations for prenatal and reproductive care

N. Okun, V. Bonham, April D. Adams, 2023, Prenatal diagnosis.

Prospective Study of Intracranial Translucency and the Posterior Brain in Normal Fetuses at the 11‐ to 13‐Week Scan

N. Okun, A. Toi, R. Menezes, 2014, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.

Morbidity assessment index for newborns: a composite tool for measuring newborn health.

N. Okun, T. Maguire, A. Verma, 1999, American journal of obstetrics and gynecology.

Genetic Considerations for a Woman’s Pre-conception Evaluation

N. Okun, S. Langlois, V. Désilets, 2011 .

Clinical outcomes after assisted reproductive technology in twin pregnancies: chorionicity-based comparison

Jun Zhang, N. Okun, Y. Chen, 2016, Scientific Reports.

Iodine nutrition during pregnancy in Toronto, Canada.

G. Tomlinson, D. Feig, N. Okun, 2013, Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists.

Gestational diabetes mellitus. Unresolved issues and future research directions.

N. Okun, A. Verma, N. Demianczuk, 1997, Canadian family physician Medecin de famille canadien.

Current practices in the prediction and prevention of preterm birth in patients with higher-order multiple gestations.

N. Okun, D. Farine, E. Baker, 2015, American journal of obstetrics and gynecology.

Excluding pregnancy from COVID-19 trials: Protection from harm or the harm of protection?

N. Okun, J. Snelgrove, A. Malinowski, 2020, Canadian Medical Association Journal.

Prenatal invasive procedures in women with hepatitis B, hepatitis C, and/or human immunodeficiency virus infections.

N. Okun, Jo-Ann K. Brock, F. Audibert, 2014, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prenatal screening, diagnosis, and pregnancy management of fetal neural tube defects.

N. Okun, S. Langlois, Jo-Ann K. Brock, 2014, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prenatal screening for fetal aneuploidy in singleton pregnancies.

N. Okun, D. Chitayat, S. Langlois, 2011, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Genetic considerations for a woman's pre-conception evaluation.

N. Okun, S. Langlois, V. Désilets, 2011, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prenatal Diagnosis Procedures and Techniques to Obtain a Diagnostic Fetal Specimen or Tissue: Maternal and Fetal Risks and Benefits.

N. Okun, Jo-Ann K. Brock, J. Carroll, 2015, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Combinations of maternal serum markers to predict preeclampsia, small for gestational age, and stillbirth: a systematic review.

J. Kingdom, N. Okun, K. Murphy, 2012, Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC.

Prediction of adverse pregnancy outcomes by combinations of first and second trimester biochemistry markers used in the routine prenatal screening of Down syndrome

Tianhua Huang, B. Hoffman, W. Meschino, 2010, Prenatal diagnosis.