Boston Medical Center Concussion Clinic, Ryan Center for Sports Medicine & Rehabilitation at Boston University, Boston, Massachusetts, United States
Penn Presbyterian Medical Center, Philadelphia, Pennsylvania, United States
Carilion Roanoke Memorial Hospital, Roanoke, Virginia, United States
Retina Foundation of the Southwest, Dallas, Texas, United States
BlueGrass Orthopaedics, Lexington, Kentucky, United States
Penn Presbyterian Medical Center, Philadelphia, Pennsylvania, United States
Southern California Permanente Group, La Palma, California, United States
Vanderbilt Eye Institute, Nashville, Tennessee, United States
Retina Foundation of the Southwest, Dallas, Texas, United States
Doheny Eye Institute, Los Angeles, California, United States