1. Department of Otolaryngology-Head and Neck Surgery; Sidney Kimmel Comprehensive Cancer Center; Baltimore Maryland U.S.A
2. Johns Hopkins Carey Business School; the Johns Hopkins Bloomberg School of Public Health; Baltimore Maryland U.S.A
3. Department of Health Policy and Management; the Johns Hopkins Bloomberg School of Public Health; Baltimore Maryland U.S.A
4. Department of Oncology; Sidney Kimmel Comprehensive Cancer Center; Baltimore Maryland U.S.A
5. Department of Radiation Oncology and Molecular Radiation Sciences; Johns Hopkins Medical Institutions; Baltimore Maryland U.S.A