Knee Osteoarthritis

• Centre Hospitalier de l'Université de Montréal — Montreal, Quebec, Canada

• Loma Linda University Dept. of Orthopaedic Surgery — Loma Linda, California, United States
• Holy Cross Orthopedic Institute — Fort Lauderdale, Florida, United States
• Castle Orthopaedics & Sports Medicine, S.C. — Aurora, Illinois, United States
• Midwest Orthopaedics at Rush — Chicago, Illinois, United States

• Zuyderland Medical Center — Sittard, Limburg, Netherlands

• Kepler Universitäts Klinikum — Linz, Austria

• Spaarne Gasthuis — Hoofddorp, North Holland, Netherlands

• Covenant Medical Center — Saginaw, Michigan, United States

• University Center of Orthopaedics and Traumatology, University Medicine Carl Gustav Carus Dresden, TU Dresden — Dresden, Saxony, Germany

• The Parker Institute — Copenhagen, Denmark
• Reumatolog i Odense — Odense, Denmark
• AP-HM hopitaux — Marseille, France
• Clinique Saint Louis — Poissy, France

Not specified

• Keimyung University Dongsan Medical Center — Daegu, South Korea
• KyungHee University Gangdong Hospital — Seoul, South Korea
• Gangnam Severance Hospital — Seoul, South Korea
• The Catholic University of Korea, Seoul ST. Mary's Hospital — Seoul, South Korea