1. Department of Otorhinolaryngology-Head and Neck Surgery; University of Pennsylvania; Philadelphia PA
2. Department of Otolaryngology; Harvard Medical School, Massachusetts Eye and Ear Infirmary; Boston MA
3. North Shore ENT; Danvers MA
4. Department of Otolaryngology-Head and Neck Surgery; University of South Florida; Tampa FL
5. Department of Health Policy and Management; University of South Florida; Tampa FL
6. Division of Allergy, Asthma, & Immunology; Scripps Clinic and Research Foundation; San Diego CA