| Affiliation: | 1. Department of Otolaryngology, Massachusetts Eye and Ear Infirmary and Harvard Medical School, Boston, Massachusetts, U. S.A.;2. Department of Otolaryngology–Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri, U.S.A.;3. Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario “Agostino Gemelli”–IRCCS, Rome, Italy;4. Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, U.S.A |
