1. Harvard Medical School, Boston, Massachusetts
2. Asia Injury Prevention Foundation, Chamka Mom District, Phnom Penh, Cambodia
3. Department of Neurosurgery, Preah Kossamak Hospital, Phnom Penh, Cambodia
4. Department of Neurology, Asklepios Klinikum Heidberg Nord, Hamburg, Germany
5. Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts
6. Program in Global Surgery and Social Change, Harvard Medical School, Boston, Massachusetts