1. Department of Otorhinolaryngology Jena University Hospital, Friedrich Schiller University Jena Germany
2. Facial Nerve Center Jena University Hospital, Friedrich Schiller University Jena Germany
3. Multidisciplinary Salivary Gland Society Geneva Switzerland
4. Department of Otolaryngology‐Head and Neck Surgery Southern Illinois University Springfield Illinois USA
5. Department of Otorhinolaryngology Mayo Clinic Rochester Minnesota USA
6. Head and Neck Service, Memorial Sloan‐Kettering Cancer Center New York New York USA
7. Department of Otorhinolaryngology‐Head and Neck Surgery University of Helsinki and Helsinki University Hospital Helsinki Finland
8. Research Program in Systems Oncology, Faculty of Medicine University of Helsinki Helsinki Finland
9. Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology Karolinska Institute and Karolinska Hospital Stockholm Sweden
10. Department of Head and Neck Surgical Oncology University Medical Center Utrecht Utrecht The Netherlands
11. Otorhinolaryngology‐Head and Neck Surgery University Hospitals Leuven and Department of Oncology, Section Head and Neck Oncology Leuven Belgium
12. Department of Otolaryngology Hospital Santa Creu i Sant Pau Barcelona Spain
13. University of Udine School of Medicine Udine Italy
14. Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, and Division of Head and Neck Surgery Sao Paulo State University Medical School São Paulo Brazil
15. Servicio de Otorrinolaringología Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo Oviedo Spain
16. Department of Head & Neck Surgery St Luc University Hospital and King Albert II Cancer Institute, Brussels, Belgium; Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain Brussels Belgium
17. Coordinator of the International Head and Neck Scientific Group Padua Italy