Institution: | 1. The Micheli Center for Sports Injury Prevention, Waltham, MA, USA;2. Division of Sports Medicine, Department of Orthopaedics, Boston Children's Hospital, Boston, MA, USA;3. Brain Injury Center, Boston Children's Hospital, Boston, MA, USA;4. Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA;5. Division of Emergency Medicine, Boston Children's Hospital, Boston, MA, USA;6. Department of Pediatrics, Harvard Medical School, Boston, MA, USA |