U. Gbureck
发表
Jake E. Barralet,
Liam M. Grover,
Uwe Gbureck,
2008
.
F. Tacke,
J. Groll,
H. Keul,
2012,
Nanomedicine : nanotechnology, biology, and medicine.
F. Beckmann,
H. Deyhle,
B. Müller,
2012
.
Dietmar Werner Hutmacher,
Maximilian Rudert,
Jan-Thorsten Schantz,
2013,
Advanced drug delivery reviews.
Frank A. Müller,
Jake E. Barralet,
Uwe Gbureck,
2007
.
L. Grover,
J. Barralet,
A. Wright,
2005
.
Uwe Gbureck,
A. Kübler,
U. Klammert,
2009,
Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery.
Miguel Castilho,
Inês Pires,
Uwe Gbureck,
2014,
Biofabrication.
Uwe Gbureck,
Elke Vorndran,
F. Müller,
2007,
Journal of controlled release : official journal of the Controlled Release Society.
U. Gbureck,
J. Torres,
F. T. Mariño,
2009,
Acta biomaterialia.
F. Müller,
U. Gbureck,
Anne V. Boehm,
2020,
Scientific Reports.
J. Barralet,
Zishuai Zhang,
D. Sato,
2019,
Advanced science.
B. Basu,
Sourav Mandal,
U. Gbureck,
2018,
Journal of Materials Science: Materials in Medicine.
U Gbureck,
A. Kübler,
U. Klammert,
2009,
Acta biomaterialia.
B. Nies,
U. Gbureck,
A. Hoess,
2019,
Materials.
J. Groll,
E. Vorndran,
U. Gbureck,
2018,
Acta biomaterialia.
C. Moseke,
E. Vorndran,
U. Gbureck,
2015
.
M. Gelinsky,
J. Groll,
C. Moseke,
2013,
Materials science & engineering. C, Materials for biological applications.
J. Groll,
U. Gbureck,
S. Meininger,
2018
.
J. Groll,
C. Moseke,
U. Gbureck,
2018,
Journal of Materials Science: Materials in Medicine.
B. Nies,
E. Vorndran,
U. Gbureck,
2012,
Journal of biomaterials applications.
C. Moseke,
J. Barralet,
U. Gbureck,
2008,
Biomaterials.
J. Groll,
U. Gbureck,
M. Geffers,
2015,
Materials.
F. Tacke,
C. Trautwein,
N. Gassler,
2012,
ACS nano.
Geraldine E. Merle,
J. Barralet,
Zishuai Zhang,
2018
.
U. Gbureck,
J. Torres,
M. Alkhraisat,
2010,
Acta biomaterialia.
D. Farrar,
J. Barralet,
U. Gbureck,
2003
.
J. Barralet,
U. Gbureck,
R. Thull,,
2005,
Biomaterials.
S. Nazhat,
J. Barralet,
A. Young,
2008,
Acta biomaterialia.
U. Gbureck,
R. Thull,,
A. Masten,
2003
.
J. Barralet,
U. Gbureck,
R. Thull,,
2005,
Journal of materials science. Materials in medicine.
L. Grover,
J. Barralet,
A. Wright,
2005
.
L. Grover,
D. Farrar,
J. Barralet,
2003
.
Geraldine E. Merle,
S. Gruenheid,
U. Gbureck,
2020,
Advanced biosystems.
U. Gbureck,
R. Jakubietz,
M. Jordan,
2021,
Materials.
T. Blunk,
U. Gbureck,
M. Jordan,
2019,
Materials.
R. Shelton,
J. Barralet,
P. Cooper,
2006,
Biomaterials.
L. Grover,
J. Barralet,
A. Ewald,
2011,
Acta biomaterialia.
J. Barralet,
U. Gbureck,
S. Grübel,
2005,
Acta biomaterialia.
Geraldine E. Merle,
J. Barralet,
Zishuai Zhang,
2018,
Advanced Functional Materials.
M. Bohner,
U. Gbureck,
2008,
Journal of biomedical materials research. Part B, Applied biomaterials.
L. Grover,
J. Barralet,
U. Gbureck,
2004,
Biomaterials.
J. Barralet,
U. Gbureck,
R. Thull,,
2005
.
J. Groll,
A. Kübler,
U. Gbureck,
2016,
Acta biomaterialia.
M. Bohner,
J. Barralet,
U. Gbureck,
2005,
Biomaterials.
P. R. van Weeren,
J. Malda,
T. Vermonden,
2020,
Biofabrication.
J. Groll,
A. Ewald,
U. Gbureck,
2014
.
Multifunctional calcium phosphate based coatings on titanium implants with integrated trace elements
D. Scharnweber,
C. Moseke,
U. Gbureck,
2019,
Biomedical materials.
H. Mangat,
H. Seitz,
S. Hussain,
2019,
Advanced Functional Materials.
J. Groll,
U. Gbureck,
Martha Schamel,
2017,
Materials science & engineering. C, Materials for biological applications.
U. Gbureck,
Theresa Brückner,
T. Brückner,
2017
.
S. Bhaduri,
P. Sikder,
U. Gbureck,
2020
.
J. Groll,
C. Moseke,
C. Lehmann,
2013
.
F. Müller,
T. Kasuga,
J. Barralet,
2007
.
D. Farrar,
J. Knowles,
J. Barralet,
2007
.
J. Groll,
J. Teßmar,
U. Gbureck,
2022,
Journal of biomaterials applications.
L. Grover,
J. Paxton,
E. Vorndran,
2011
.
A. Ignatius,
J. Barralet,
U. Gbureck,
2017,
Scientific Reports.
A. Boccaccini,
R. Horch,
U. Kneser,
2014,
PloS one.
W. Stark,
A. Boccaccini,
R. Horch,
2013,
Journal of Nanoparticle Research.
T. Kissel,
U. Gbureck,
R. Thull,,
2006,
Biomaterials.
A. Lode,
M. Gelinsky,
S. Rammelt,
2018,
Acta biomaterialia.
M. Gelinsky,
A. Bernhardt,
U. Gbureck,
2021,
International journal of molecular sciences.
M. Gelinsky,
A. Bernhardt,
U. Gbureck,
2017,
PloS one.
J. Groll,
U. Gbureck,
Michaela Rödel,
2018,
Journal of tissue engineering.
V. Nelea,
M. McKee,
D. Bassett,
2008,
Biomaterials.
J. Barralet,
J. Ramirez-Garcialuna,
E. Harvey,
2017,
Tissue engineering. Part A.
L. Koll,
E. Werner,
U. Gbureck,
2014,
Materials science & engineering. C, Materials for biological applications.
L. Grover,
J. Barralet,
C. Grossardt,
2010,
Tissue engineering. Part A.
S. Bhaduri,
P. Sikder,
U. Gbureck,
2021,
Acta biomaterialia.
L. Grover,
R. Shelton,
Yizhong Huang,
2006,
Biomaterials.
C. Moseke,
P. Drechsler,
P. Elter,
2011,
Journal of materials science. Materials in medicine.
E. Werner,
U. Gbureck,
R. Thull,,
2010,
Biomedical materials.
U. Gbureck,
R. Thull,,
J. Probst,
2001
.
J. Groll,
J. Barralet,
U. Gbureck,
2015,
Acta biomaterialia.
E. Werner,
J. Groll,
C. Moseke,
2013
.
J. Barralet,
E. Vorndran,
U. Gbureck,
2008,
Acta biomaterialia.
B. Nieswandt,
M. Bösl,
T. Vögtle,
2021,
bioRxiv.
S. Komarova,
D. Bassett,
Y. Zhang,
2013,
European cells & materials.
E. Werner,
J. Groll,
C. Moseke,
2014,
Materials science & engineering. C, Materials for biological applications.
M. Gelinsky,
C. Moseke,
A. Ewald,
2012,
Journal of biomedical materials research. Part A.
U. Gbureck,
F. T. Mariño,
M. Alkhraisat,
2010,
Acta biomaterialia.
J. Barralet,
Y. Perrie,
U. Gbureck,
2008,
Acta biomaterialia.
F. Prósper,
J. Pons-Villanueva,
J. Nickel,
2019,
Materials.
B. Nies,
A. Ewald,
U. Klammert,
2021,
Clinical Oral Investigations.
C. Werner,
H. Worch,
D. Klee,
2008
.
L. Grover,
J. Barralet,
U. Gbureck,
2004,
Biomaterials.
T. Kissel,
E. Vorndran,
U. Gbureck,
2011,
Journal of biomedical materials research. Part B, Applied biomaterials.
F. Müller,
E. Vorndran,
U. Gbureck,
2015
.
R. Shelton,
J. Barralet,
U. Gbureck,
2009,
Journal of biomedical materials research. Part A.
A. Ignatius,
U. Gbureck,
M. Geffers,
2014,
Acta biomaterialia.
U. Wolfram,
A. Ignatius,
U. Klammert,
2011,
Acta biomaterialia.
L. Grover,
A. Ewald,
U. Gbureck,
2011,
Journal of biomedical materials research. Part B, Applied biomaterials.
F. Müller,
A. Ewald,
E. Vorndran,
2011,
Journal of materials science. Materials in medicine.
J. Tran-Gia,
M. Lassmann,
U. Gbureck,
2019,
Physics in medicine and biology.
Miguel Castilho,
Inês Pires,
Jürgen Groll,
2013,
Biofabrication.
F. Goetz-Neunhoeffer,
K. Hurle,
U. Gbureck,
2018,
Acta biomaterialia.
B. Nies,
A. Ewald,
E. Vorndran,
2013,
Acta biomaterialia.
C. Moseke,
U. Gbureck,
2010,
Acta biomaterialia.
F. Müller,
J. Barralet,
U. Gbureck,
2009,
Colloids and surfaces. B, Biointerfaces.
J. Groll,
A. Kübler,
U. Gbureck,
2019,
Materials.
Jürgen Groll,
Uwe Gbureck,
J. Groll,
2017,
Advanced healthcare materials.
Bikramjit Basu,
Michael Gelinsky,
Ramakrishna Vasireddi,
2016
.
M. Gelinsky,
J. Groll,
J. Barralet,
2017,
Advanced materials.
Christina Graf,
Eckart Rühl,
Uwe Gbureck,
2008,
Small.
L. Grover,
D. Farrar,
J. Barralet,
2006
.
J. Groll,
K. Hurle,
U. Gbureck,
2018
.
Huan Zhou,
Sarit B Bhaduri,
Uwe Gbureck,
2018,
Acta biomaterialia.
A. Ignatius,
U. Gbureck,
P. Stahlhut,
2022,
Acta biomaterialia.
Anita Ignatius,
Uwe Gbureck,
A. Ignatius,
2018,
Acta biomaterialia.
J. Groll,
J. Barralet,
U. Gbureck,
2015
.
U Gbureck,
F. Müller,
C. Moseke,
2011
.
Uwe Gbureck,
C. Moseke,
Claus Moseke,
2011,
Journal of materials science. Materials in medicine.
Uwe Gbureck,
Elke Vorndran,
F. Müller,
2010,
Journal of materials science. Materials in medicine.
L. Grover,
J. Barralet,
A. Kübler,
2010,
Acta biomaterialia.
S. Nazhat,
J. Barralet,
U. Gbureck,
2006,
Journal of biomedical materials research. Part B, Applied biomaterials.
S. Nazhat,
J. Barralet,
A. Young,
2006
.
B. Nies,
A. Ewald,
U. Klammert,
2019,
Materials.
Uwe Gbureck,
Elke Vorndran,
C. Moseke,
2015
.
Biocompatibility of magnesium phosphate minerals and their stability under physiological conditions.
Faleh Tamimi,
Jonathan Knowles,
Svetlana V Komarova,
2011,
Acta biomaterialia.
B. Nies,
J. Groll,
A. Kübler,
2014,
Materials science & engineering. C, Materials for biological applications.
H. Zreiqat,
U. Gbureck,
Jeffrey X Shi,
2019,
Materials.
C. Doillon,
J. Barralet,
D. Le Nihouannen,
2008,
Acta biomaterialia.
L. Grover,
J. Barralet,
U. Gbureck,
2003
.
L. Grover,
Yong Liu,
D. Farrar,
2013,
Biomaterials.
L. Grover,
U. Gbureck,
Y. Tan,
2011
.
L. Grover,
J. Barralet,
U. Gbureck,
2008,
Acta biomaterialia.
Maryjane Tremayne,
Uwe Gbureck,
Liam M Grover,
2006,
Biomaterials.
J. Groll,
A. Ewald,
U. Gbureck,
2011
.
L. Grover,
J. Barralet,
U. Gbureck,
2005,
Biomaterials.
Bikramjit Basu,
Jürgen Groll,
Uwe Gbureck,
2016,
Acta biomaterialia.
A. Ignatius,
U. Gbureck,
S. Stein,
2020,
Acta biomaterialia.
A. Ignatius,
A. Ewald,
U. Gbureck,
2017,
Materials science & engineering. C, Materials for biological applications.
D. Farrar,
J. Knowles,
J. Barralet,
2005,
Journal of materials science. Materials in medicine.
J. Groll,
C. Moseke,
U. Gbureck,
2016,
Materials science & engineering. C, Materials for biological applications.
Pamela Habibovic,
Uwe Gbureck,
Elke Vorndran,
2009,
Tissue engineering. Part A.
Clemens A van Blitterswijk,
Pamela Habibovic,
Uwe Gbureck,
2008,
Biomaterials.
A. Ewald,
U. Gbureck,
M. Alkhraisat,
2017
.
L. Grover,
J. Barralet,
U. Gbureck,
2008,
Journal of materials science. Materials in medicine.
J. Groll,
T. Jüngst,
U. Gbureck,
2021,
Materials.
J. Groll,
C. Moseke,
J. Barralet,
2012,
Journal of Materials Science: Materials in Medicine.
Jake E. Barralet,
Maryjane Tremayne,
Uwe Gbureck,
2005
.
J. Groll,
J. Barralet,
U. Gbureck,
2017,
Biomaterials Research.
J. Groll,
J. Teßmar,
U. Gbureck,
2018,
Acta biomaterialia.
J. Groll,
E. Vorndran,
U. Gbureck,
2013,
Journal of Materials Science: Materials in Medicine.
J. Barralet,
U. Gbureck,
M. Hofmann,
2004,
Journal of dental research.
M. Bohner,
U. Gbureck,
A. Malsy,
2006,
Acta biomaterialia.
F. Goetz-Neunhoeffer,
K. Hurle,
U. Gbureck,
2022,
Ceramics International.
M. Bohner,
U. Gbureck,
W. Hirsiger,
2005
.
L. Grover,
P. Purnell,
U. Gbureck,
2010
.
L. Grover,
J. Barralet,
S. Patel,
2007
.
U Gbureck,
L. Grover,
D. Farrar,
2004,
Journal of materials science. Materials in medicine.
S. Nazhat,
J. Barralet,
A. Young,
2006
.
L. Grover,
J. Barralet,
U. Gbureck,
2003
.
L. Grover,
J. Barralet,
U. Gbureck,
2003,
Biomaterials.
A. Dolatshahi-Pirouz,
R. van Weeren,
N. Golafshan,
2020,
Biomaterials.
L. Grover,
J. Bowen,
E. Vorndran,
2013,
Colloids and surfaces. B, Biointerfaces.
A. Lode,
M. Gelinsky,
M. Kampschulte,
2017,
Biomaterials science.
D. Farrar,
J. Barralet,
A. Wright,
2006
.
L. Grover,
J. Barralet,
U. Gbureck,
2005
.
L. Grover,
D. Farrar,
J. Barralet,
2005
.
O. Addison,
W. Palin,
U. Gbureck,
2007
.
B. Nies,
S. Roessler,
D. Scharnweber,
2013,
Journal of biomedical materials research. Part B, Applied biomaterials.
L. Grover,
J. Barralet,
Y. Perrie,
2006,
Acta biomaterialia.
J. Barralet,
U. Gbureck,
R. Thull,,
2005,
Journal of biomedical materials research. Part B, Applied biomaterials.
J. Barralet,
U. Gbureck,
H. Klinger,
2004
.
C. Moseke,
F. Goetz-Neunhoeffer,
J. Neubauer,
2015,
Journal of Materials Science: Materials in Medicine.
Uwe Gbureck,
Elke Vorndran,
A. Kübler,
2010,
Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery.
F. Müller,
E. Vorndran,
U. Gbureck,
2013
.
F. Müller,
U. Gbureck,
S. Flauder,
2014,
Acta biomaterialia.
Faleh Tamimi,
Uwe Gbureck,
Jesus Torres,
2009,
Biomaterials.
Faleh Tamimi,
Uwe Gbureck,
Jesus Torres,
2014,
Biomaterials.
Faleh Tamimi,
Uwe Gbureck,
Juan Carlos Prados-Frutos,
2011,
Journal of clinical periodontology.
A. Lode,
M. Gelinsky,
C. Moseke,
2017,
Materials science & engineering. C, Materials for biological applications.
J. Barralet,
U. Gbureck,
M. Hofmann,
2004
.
J. Prados-Frutos,
A. Ewald,
U. Gbureck,
2015,
Biomedical materials.
L. Grover,
S. Patel,
U. Gbureck,
2009,
Journal of biomedical materials research. Part B, Applied biomaterials.
J. Barralet,
U. Gbureck,
M. Hofmann,
2005
.
U. Gbureck,
R. Thull,,
J. Probst,
2002,
Biomolecular engineering.
H. Nishikawa,
D. Bassett,
J. Barralet,
2005,
Journal of biomedical materials research. Part B, Applied biomaterials.
Peter M Jakob,
Jochen Eulert,
Ulrich Nöth,
2008,
Biomaterials.
M. Epple,
U. Gbureck,
S. Heinemann,
2019,
Materials.
C. Berndt,
V. K. Truong,
H. Zreiqat,
2019,
Surface and Coatings Technology.
Heike Walles,
Jürgen Groll,
Uwe Gbureck,
2018,
Advanced materials.
U. Gbureck,
R. Thull,,
David Tebbe,
2007,
Acta biomaterialia.
S. Komarova,
J. Barralet,
D. Le Nihouannen,
2008,
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.
L. Grover,
S. Patel,
U. Gbureck,
2007
.
H. Zreiqat,
J. Groll,
U. Gbureck,
2021,
Journal of the American Ceramic Society.
J. Barralet,
U. Gbureck,
N. Hofmann,
2007,
Journal of biomedical materials research. Part B, Applied biomaterials.
F. Goetz-Neunhoeffer,
K. Hurle,
U. Gbureck,
2019,
Materials.
P. R. van Weeren,
J. Malda,
J. Groll,
2020,
ACS biomaterials science & engineering.
D. Farrar,
J. Barralet,
A. Wright,
2005,
Journal of materials science. Materials in medicine.
U Gbureck,
J. Prados-Frutos,
A. Ewald,
2015,
Journal of biomedical materials research. Part A.
F. Müller,
U. Gbureck,
S. Meininger,
2018,
Materials.
H Weinans,
J Groll,
J Malda,
2017,
Osteoarthritis and cartilage.
Jürgen Groll,
Uwe Gbureck,
Elke Vorndran,
2015
.
J. Barralet,
Z. Sheikh,
U. Gbureck,
2015
.
J. Groll,
U. Gbureck,
Carina Blum,
2022,
Biomaterials.
Uwe Gbureck,
A. Ewald,
Andrea Ewald,
2006,
Biomedical engineering online.
P. Angele,
R. Kujat,
M. Nerlich,
2005,
Biomaterials.
C. Moseke,
A. Ewald,
U. Gbureck,
2020,
Biomedizinische Technik. Biomedical engineering.
P. Jakob,
J. Stritzker,
M. Scadeng,
2011,
PloS one.
U. Gbureck,
M. Jordan,
R. Meffert,
2022,
Journal of the mechanical behavior of biomedical materials.
F. Tacke,
C. Trautwein,
J. M. Lanao,
2017,
Macromolecular bioscience.
L. Grover,
N. Hunt,
R. Shelton,
2010,
Acta biomaterialia.
U. Gbureck,
M. Jordan,
R. Meffert,
2020,
Journal of Orthopaedic Surgery and Research.
P. Fernandes,
C. Quental,
J. Folgado,
2017,
Journal of the mechanical behavior of biomedical materials.
L. Grover,
J. Barralet,
N. Makhoul,
2023,
Journal of functional biomaterials.
F. Müller,
Tao Wang,
L. Müller,
2021,
Ceramics International.
Miguel Castilho,
Inês Pires,
Jürgen Groll,
2014,
Biofabrication.
J. Barralet,
Zishuai Zhang,
N. Makhoul,
2019,
Advanced healthcare materials.
J. Barralet,
U. Gbureck,
M. Hofmann,
2007,
Journal of biomedical materials research. Part B, Applied biomaterials.
H. Seitz,
S. Hussain,
Y. Zhang,
2018,
bioRxiv.
Frank A. Müller,
Jake E. Barralet,
Uwe Gbureck,
2007
.
David B. Jones,
M. Kratz,
T. Kissel,
2013,
Advanced healthcare materials.
U. Gbureck,
R. Thull,,
David Tebbe,
2007,
Biomedical engineering online.
C. Moseke,
E. Vorndran,
U. Gbureck,
2012
.
F. Müller,
U. Gbureck,
S. Flauder,
2012
.
Jake E. Barralet,
Uwe Gbureck,
Elke Vorndran,
2010
.
J. Groll,
U. Gbureck,
Annika Seifert,
2021,
Advanced Engineering Materials.
J. Groll,
C. Moseke,
U. Gbureck,
2013
.
A. Kübler,
U. Gbureck,
H. Böhm,
2023,
Clinical Oral Investigations.
H. Hermanns,
B. Nieswandt,
M. Bösl,
2023,
Frontiers in Immunology.
P. Jakob,
C. Ziener,
W. Bauer,
2010,
Magnetic resonance in medicine.
F. Müller,
J. Groll,
U. Gbureck,
2021,
Advanced Engineering Materials.
J. Groll,
J. Teßmar,
U. Gbureck,
2018,
Materials.
J. Groll,
C. Moseke,
H. Walles,
2020,
Materials.
A. Ignatius,
J. Barralet,
U. Gbureck,
2017,
Scientific Reports.
F. Müller,
U. Gbureck,
S. Meininger,
2020,
Scientific Reports.
A. Ewald,
U. Gbureck,
N. Hofmann,
2012,
Dental materials : official publication of the Academy of Dental Materials.
P. Fernandes,
E. Vorndran,
U. Gbureck,
2019,
New Developments in Tissue Engineering and Regeneration.
S. Komarova,
J. Barralet,
D. Le Nihouannen,
2008,
Biomaterials.
A. Ewald,
U. Gbureck,
M. Alkhraisat,
2016,
Biomedical materials.
L. Grover,
S. Cox,
A. Wright,
2017
.
C. Berndt,
J. Cizek,
H. Zreiqat,
2021,
Materials science & engineering. C, Materials for biological applications.
A. Kübler,
U. Gbureck,
S. Hölscher-Doht,
2023,
Journal of Materials Science: Materials in Medicine.
Jake E. Barralet,
Liam M. Grover,
Uwe Gbureck,
2009
.
L. Meinel,
D. Fatouros,
U. Gbureck,
2023,
European journal of pharmaceutics and biopharmaceutics.
M. Dias,
J. Groll,
I. Pires,
2013,
Biofabrication.
A. Ewald,
U. Gbureck,
N. Hofmann,
2012,
Dental materials : official publication of the Academy of Dental Materials.
U. Gbureck,
R. Thull,,
David Tebbe,
2007,
Biomedical engineering online.
V. Nelea,
M. McKee,
D. Bassett,
2008,
Biomaterials.
U. Gbureck,
M. Jordan,
P. Heilig,
2023,
Clinical biomechanics.
C. Moseke,
E. Vorndran,
U. Gbureck,
2015
.
J. Groll,
C. Moseke,
I. Pires,
2014,
Biofabrication.
P. Jakob,
C. Ziener,
W. Bauer,
2010,
Magnetic resonance in medicine.
R. Hagen,
C. Moseke,
U. Gbureck,
2014,
ORL.
A. Ewald,
U. Gbureck,
M. Lemm,
2013,
Acta biomaterialia.
J. Groll,
C. Moseke,
T. Wagner,
2016,
Materials science & engineering. C, Materials for biological applications.
A. Ewald,
U. Gbureck,
S. Hoelscher-Doht,
2023,
Materials.
Tomasz Jungst,
U. Gbureck,
Tiziana Fischetti,
2024,
Advanced Materials Technologies.
U. Gbureck,
K. Benders,
Jürgen Groll,
2017,
Osteoarthritis and cartilage.