1. Wheaton College, Norton, Massachusetts, USA
2. Division of Sports Medicine, University of Missouri, Columbia, Missouri, USA
3. Department of Anesthesiology, Critical Care and Pain Medicine, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
4. Division of Sports Medicine, Departments of Orthopedics and Pediatrics, Warren Alpert Medical School, Brown University, Rhode Island Hospital/Hasbro Children’s Hospital, Providence, Rhode Island, USA