1. Department of Ophthalmology, Boston Children’s Hospital, Boston, Massachusetts, USA
2. Department of Ophthalmology, Massachusetts Eye and Ear, Boston, Massachusetts, USA
3. Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
4. Spencer Center for Vision Research, Byers Eye Institute, Stanford University, Palo Alto, California, USA
5. Department of Neurology, Boston Children’s Hospital, Boston, Massachusetts, USA
6. Department of Neurology, Harvard Medical School, Boston, Massachusetts, USA
7. Micheli Center for Sports Injury Prevention, Division of Sports Medicine, Department of Orthopedics, Boston Children’s Hospital, Boston, Massachusetts, USA
8. Brain Injury Center, Boston Children’s Hospital, Boston, Massachusetts, USA
9. Sports Medicine Center, Children’s Hospital Colorado, Aurora, Colorado, USA
10. Department of Orthopedics, University of Colorado Denver School of Medicine, Aurora, Colorado, USA
11. Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA