1. Department of Otolaryngology–Head and Neck Surgery, University of Washington, Seattle
2. Department of Otolaryngology, University of Alabama–Birmingham Hospital, Birmingham3Celebration Health Hospital, Kissimmee, Florida
3. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston
4. Department of Otorhinolaryngology–Head & Neck Surgery, The University of Texas Health Science Center at Houston, Houston
5. Department of Otolaryngology–Head & Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland
6. Department of Otolaryngology–Head & Neck Surgery, Oregon Health Sciences University, Portland
7. University of Alabama–Birmingham Medical School, Birmingham
8. Baylor College of Medicine, Houston, Texas
9. Department of Otolaryngology–Head and Neck Surgery, University of Washington, Seattle10Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington11Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattl