Osteoarthritis, Knee

• UNC Thurston Arthritis Research Center — Chapel Hill, North Carolina, United States

• Central Research Associates, Inc — Birmingham, Alabama, United States
• Weil Foot, Ankle and Orthopedic Institute — Des Plaines, Illinois, United States

• Mercy Hospital of Pittsbugh — Pittsburgh, Pennsylvania, United States

• Department of Occupational and Physiotherapy, Aalborg University Hospital — Aalborg, Denmark
• Farsoe Hospital — Farsø, Denmark
• Vendsyssel Hospital, Frederikshavn — Frederikshavn, Denmark

• Department of Occupational and Physiotherapy, Aalborg Hospital-Aarhus University Hospital — Aalborg, Denmark
• Farsoe Hospital — Farsø, Denmark
• Vendsyssel Hospital, Frederikshavn — Frederikshavn, Denmark

• University of British Columbia — Vancouver, British Columbia, Canada

• Ludwig Maximilian University, University Hosipital, Department of Orthopedics, Physical Medicine and Rehabilitation — Munich, Germany

Not specified

• Arizona Arthritis Research, PLC — Paradise Valley, Arizona, United States
• NextCare Institute for Clinical Research — Phoenix, Arizona, United States
• HOPE Research Institute, LLC — Phoenix, Arizona, United States
• Clinical Research Consulting — Milford, Connecticut, United States

• Johns Hopkins Bayview Medical Center — Baltimore, Maryland, United States