1. Department of Otolaryngology–Head and Neck Surgery University of South Florida Tampa Florida U.S.A.
2. College of Public Health University of South Florida Tampa Florida U.S.A.
3. Department of Otolaryngology–Head and Neck Surgery Icahn School of Mount Sinai New York City New York U.S.A.
4. Department of Otolaryngology, Harvard Medical School Massachusetts Eye and Ear Infirmary Boston Massachusetts U.S.A.
5. Department of Neurosurgery University of Pennsylvania Philadelphia Pennsylvania U.S.A.
6. Office of Clinical Research University of Pennsylvania Philadelphia Pennsylvania U.S.A.
7. Department of Otorhinolaryngology–Head and Neck Surgery University of Pennsylvania Philadelphia Pennsylvania U.S.A.
8. Division of Neurosurgery Children's Hospital of Philadelphia Philadelphia Pennsylvania U.S.A.