1. Department of Otorhinolaryngology-Head and Neck Surgery; University of Pennsylvania Health System; Philadelphia Pennsylvania
2. Department of Otolaryngology-Head and Neck Surgery; University of North Carolina; Chapel Hill North Carolina
3. Department of Otolaryngology; SUNY Downstate Medical Center; Brooklyn New York
4. University of Connecticut School of Medicine; Farmington Connecticut
5. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery; University of Connecticut Health Center; Farmington Connecticut