1. Otolaryngology—Head and Neck Surgery Department University and Hospital Trust of Verona Verona Italy
2. Department of Otolaryngology Villafranca Hospital Verona Italy
3. Division of Pathology Central Hospital Bolzano Bolzano Italy
4. Division of Otorhinolaryngology, Central Hospital Bolzano Bolzano Italy
5. Department of Diagnostics and Public Health, Section of Pathology University of Verona Verona Italy
6. Catholic University‐Fondazione Policlinico Universitario “A. Gemelli” IRCCS Rome Italy
7. Department of Molecular Medicine Unit of Pathology, University of Pavia and Foundation IRCCS Policlinico S. Matteo Pavia Italy
8. Department of Pathology, Wexner Medical Center Ohio State University Columbus Ohio USA
9. Department of Pathology & Clinical Labs University of Michigan Ann Arbor Michigan USA
10. Department of Pathology and Diagnostics University and Hospital Trust of Verona Verona Italy