| Affiliation: | 1. Division of Head and Neck Surgery, University of Nebraska Medical Center, 600 S, 42nd Street, Omaha, NE 68198, USA;2. Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA;3. Division of Head and Neck Surgery, Nebraska Methodist Hospital, 8303 Dodge Street, Omaha, NE 68114, USA;1. Department of Radiation Oncology, University of Pittsburgh Cancer Institute, 5150 Centre Avenue, Pittsburgh, PA 15232, USA;2. Division of Hematology/Oncology, Department of Internal Medicine, University of Pittsburgh Cancer Institute, 5150 Centre Avenue, Pittsburgh, PA 15232, USA;3. Department of Otolaryngology/Head and Neck Surgery, University of Pittsburgh Eye and Ear Institute, Suite 500, 200 Lothrop Street, Pittsburgh, PA 15213, USA |
