1. Department of Otolaryngology–Head and Neck Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri
2. Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee
3. Department of Pathology and Immunology, Washington University School of Medicine in St Louis, St Louis, Missouri
4. Division of Oncology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri
5. Department of Radiation Oncology, Washington University School of Medicine in St Louis, St Louis, Missouri