1. Trauma and Emergency Subspecialty Surgeons, Denver, Colorado, U.S.A.
2. Department of Ophthalmology, Madigan Army Medical Center, Tacoma, Washington, U.S.A.
3. Dr. Kiran C. Patel College of Allopathic Medicine, Davie, Florida, U.S.A.
4. TOC Eye and Face, Austin, Texas, U.S.A.