[1] ATOS Clinic Heidelberg,HKF
[2] Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH) im Diakovere Annastift,International Center for Hip
[3] University of Salerno,, Knee
[4] Queen Mary University of London,and Foot Surgery
[5] Mile End Hospital,Department of Musculoskeletal Disorders, School of Medicine and Surgery
[6] Keele University School of Medicine,Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine