Affiliation: | 1. Department of Otolaryngology, University of Pittsburgh Medical Center Pittsburgh, Pennsylvania;2. Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York;3. Biostatistics Facility, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania;4. Department of Otolaryngology, Baylor College of Medicine, Houston, Texas;5. Veterans Affairs Pittsburgh Health System, Pittsburgh, Pennsylvania |