| Affiliation: | 1. Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania;2. Department of Pathology, Southern California Permanente Medical Group, Woodland Hills, California;3. Department of Pathology and Laboratory Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada;4. Department of Pathology, Cleveland Clinic, Cleveland, Ohio;5. Section of Head and Neck Surgery and Oncology, Head and Neck Institute, Cleveland Clinic, Cleveland, Ohio;6. Department of Pathology, Thomas Jefferson University, Philadelphia, Pennsylvania;7. Department of Otolaryngology–Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania;8. Department of Pathology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada;9. Department of Otolaryngology–Head and Neck Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada;10. Department of Anatomic Pathology, Moffitt Cancer Center, Tampa, Florida;11. Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York;12. Department of Pathology, Tan Tock Seng Hospital, Singapore;13. Biostatistics Facility, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania;14. Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania |
