1. Department of Otorhinolaryngology–Head and Neck Surgery, McGovern Medical School at the University of Texas Health Science Center
2. the Department of Radiation Oncologythe University of Texas MD Anderson Cancer Center, Houston
3. Abilene Christian University Abilene Texas U.S.A
4. the Department of Thoracic/Head and Neck Medical Oncologythe University of Texas MD Anderson Cancer Center, Houston
5. Department of Head and Neck Surgerythe University of Texas MD Anderson Cancer Center, Houston