Arthritis, Degenerative

• APHP Ambroise Paré — Boulogne-Billancourt, France
• CHU de Brest — Brest, France
• Centre Orthopédique Santy — Lyon, France
• CHU de Tours — Tours, France

• Entabeni Hospital — Durban, South Africa
• Zuid Afrikaans Hospital — Pretoria, South Africa

• Institute of Fundamental and Clinical Immunology — Novosibirsk, Russia

• Optimed Research, LTD — Columbus, Ohio, United States

• Seoul National University Bundang Hospital — Seongnam-si, Gyeonggi-do, South Korea

• VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA — Pittsburgh, Arizona, United States

Not specified

• Universitaire Ziekenhuizen Leuven — Leuven, Belgium
• Krankenhaus Maria Hilf — Daun, Germany
• HELIOS ENDO-Klinik Hamburg — Hamburg, Germany
• Univeritätklinik Bagrist — Zurich, Canton of Zurich, Switzerland

• Haugesund sanitetsforenings revmatismesykehus — Haugesund, Norway
• Haukeland university hospital — Bergen, Norway

• Klinik für Orthopädie und Traumatologie, University Hospital Basel — Basel, Basel-Landschaft, Switzerland