1. The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts; Boston Children's Hospital, Division of Sports Medicine, Department of Orthopaedic Surgery; Boston Children's Hospital, Division of Emergency Medicine, Department
of Medicine; and Harvard Medical School, Boston, Massachusetts; Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, Massachusetts 02115;, Email: andrea.stracciolini@childrens.harvard.edu
2. The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts; Boston Children's Hospital, Division of Sports Medicine, Department of Orthopaedic Surgery; and Harvard Medical School, Boston, Massachusetts
3. Boston Conservatory, Boston, Massachusetts
4. The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts; and Boston Children's Hospital, Division of Sports Medicine, Department of Orthopaedic Surgery, Boston, Massachusetts
5. The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts; Boston Children's Hospital, Division of Sports Medicine, Department of Orthopaedic Surgery; Boston Children's Hospital, Division of Emergency Medicine,
Department of Medicine; and Harvard Medical School, Boston, Massachusetts