1. Department of Otolaryngology–Head and Neck Surgery, Temple University School of Medicine, Philadelphia, and the Division of Otology and Neurotology, Metropolitan NeuroEar Group, Rockville, Md.
2. Department of Pathology, University of Pittsburgh Medical System, Pittsburgh
3. Department of Pathology, Fox Chase Cancer Center, Temple University Health System.
4. Department of Radiology, Fox Chase Cancer Center, Temple University Health System.
5. Head and Neck Section, Department of Surgery, Fox Chase Cancer Center, Temple University Health System.