1. Department of Pathology and Immunology School of Medicine, Washington University Medical Center St. Louis Missouri USA
2. Pathology Service, Dermatopathology Unit Massachusetts General Hospital, and Harvard Medical School Boston Massachusetts USA
3. Pathology Service, Center for Integrated Diagnostics Massachusetts General Hospital, and Harvard Medical School Boston Massachusetts USA
4. Department of Otolaryngology‐Head and Neck Surgery Massachusetts Eye and Ear, and Harvard Medical School Boston Massachusetts USA