1. Sports Medicine Program, Children's Hospital of The King's Daughters, Norfolk, VA
2. Department of Pediatrics, Eastern Virginia Medical School, Norfolk
3. Division of Sports Medicine, Children's Specialty Group, PLLC, Norfolk, VA
4. InterMed P.A., Portland, ME
5. Tufts University School of Medicine, Boston, MA
6. Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, MA
7. The Micheli Center for Sports Injury Prevention, Waltham, MA
8. Harvard Medical School, Boston, MA
9. Department of Medicine, Division of Emergency Medicine, Boston Children's Hospital, MA