Affiliation: | 1. Harvard Shoulder Service, Boston, Massachusetts, U.S.A.;2. Department of Sports Medicine and Shoulder Service, Harvard Medical School, Brigham and Women''s Hospital, Boston, Massachusetts, U.S.A.;3. Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts, U.S.A.;4. Massachusetts General Hospital, Boston, Massachusetts, U.S.A.;5. Mayo Clinic, Rochester, Minnesota, U.S.A. |