[1] Departments of Pathology and Immunology and Otolaryngology Head and Neck Surgery, Division of Anatomic and Molecular Pathology, Washington University School of Medicine, St. Louis, MO
[2] Departments of Pathology and Otolaryngology-Head and Neck Surgery, The Johns Hopkins Medical Institutions, Baltimore, MD
[3] Department of Pathology, Woodland Hills Medical Center, Woodland Hills, CA
[4] Department of Pathology and Laboratory Medicine, University of Pittsburgh, Pittsburgh, PA
[5] Department of Anatomic Pathology, Hospital Clinic, University of Barcelona, Barcelona
[6] Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR
[7] Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
[8] Department of Pathology, Radboud University Nijmegen Medical Center, Nijmegen
[9] Oral Pathology, School of Dental Sciences and Dental Hospital, University of Liverpool, Liverpool
[10] Department of Pathology, Allegiance Health, Jackson, MI
[11] ENT Clinic, University of Udine, Udine