1. Department of Otolaryngology—Head and Neck Surgery, Stanford University School of Medicine, Stanford, California.
2. Department of Surgery, University of British Columbia, Vancouver, Canada.
3. Division of Endocrinology, Mayo Clinic College of Medicine, Jacksonville, Florida.
4. Department of Surgery, The New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York.
5. Head and Neck Service, Memorial Sloan Kettering Cancer Center, New York, New York.
6. Department of Otolaryngology—Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon.
7. Department of Surgery, University of Texas Rio Grande Valley School of Medicine, Harlingen, Texas.
8. Department of Otolaryngology—Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
9. Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California.