1. Department of Epidemiology The University of Texas MD Anderson Cancer Center Houston Texas
2. Department of Head and Neck Surgery The University of Texas MD Anderson Cancer Center Houston Texas
3. Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston Texas
4. Department of Thoracic Head and Neck Medical Oncology The University of Texas MD Anderson Cancer Center Houston Texas
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 Texas
7. Division of Cancer Prevention and Population Sciences The University of Texas MD Anderson Cancer Center Houston Texas