1. Department of Otolaryngology‐Head and Neck Surgery University of Cincinnati Cincinnati Ohio U.S.A.
2. Surgical Services Cincinnati Veterans Affairs Medical Center Cincinnati Ohio U.S.A.
3. Division of Otolaryngology‐Head and Neck Surgery University of Wisconsin School of Medicine and Public Health Madison Wisconsin U.S.A.
4. Division of Sleep Surgery, Department of Otolaryngology‐Head and Neck Surgery University of California, San Francisco San Francisco California U.S.A.
5. Surgical Services San Francisco Veterans Affairs Healthcare System San Francisco California U.S.A.
6. Department of Otorhinolaryngology‐Head and Neck Surgery University of Pennsylvania Philadelphia Pennsylvania U.S.A.
7. Department of Otolaryngology‐Head and Neck Surgery University of Miami Miami Florida U.S.A.