| Affiliation: | 1. Department of Radiation Oncology, University of California, San Francisco, California;2. Department of Pathology, University of California, San Francisco, California;3. Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California;4. Department of Epidemiology and Biostatistics, University of California, San Francisco, California;5. Sacramento Ear, Nose and Throat, Sacramento, California;6. Department of Otolaryngology ‐ Head and Neck Surgery, University of California, San Francisco, San Francisco, California;7. Department of Otolaryngology ‐ Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland |
