1. Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston
2. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston
3. Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston
4. Department of Thoracic Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston
5. Department of Otolaryngology–Head and Neck Surgery, Baylor College of Medicine, Houston, Texas
6. Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston
7. Division of Cancer Prevention and Population Sciences, The University of Texas MD Anderson Cancer Center, Houston