1. Department of Orthopaedic Surgery, Urasoe General Hospital, Okinawa, Japan.
2. Department of Orthopaedic Surgery, Rokuto Orthopaedic Clinic, Okinawa, Japan.
3. Department of Sports Orthopaedic Surgery, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
4. Unité d’Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France.
5. Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway.
6. Department of Sports Injury and Illness Prevention, Orthopaedic Surgery, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
7. Department of Orthopaedic Surgery, Juntendo University, Tokyo, Japan.