1. Steadman Philippon Research Institute, Vail, Colorado, USA
2. The Steadman Clinic, Vail, Colorado, USA
3. Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
4. New England Patriots, Foxboro, Massachusetts, USA
5. Massachusetts General Hospital, Boston, Massachusetts, USA
6. Oslo University Hospital, Oslo, Norway
7. OSTRC, Norwegian School of Sports Sciences, Oslo, Norway