1. Department of Otolaryngology—Head and Neck Surgery University of Missouri School of Medicine Columbia Missouri USA
2. Department of General Surgery University of Missouri School of Medicine Columbia Missouri USA
3. Degree Program University of Missouri School of Medicine Columbia Missouri USA
4. Department of Otolaryngology—Head and Neck Surgery Rutgers Robert Wood Johnson Medical School New Brunswick New Jersey USA
5. Department of Radiology, Division of Radiation Oncology, Ellis Fischel Cancer Center University of Missouri School of Medicine Columbia Missouri USA