1. Department of Otolaryngology – Head and Neck Surgery School of Medicine, Southern Illinois University Springfield Illinois USA
2. Department of Otolaryngology – Head and Neck Surgery, Galilee Medical Center, Affiliated with Azrieli Faculty of Medicine Bar‐Ilan University Safed Israel
3. Department of Hematology and Medical Oncology The Winship Cancer Institute of Emory University Atlanta Georgia USA
4. Department of Radiation Oncology Institute of Oncology Ljubljana Slovenia
5. Otorhinolaryngology – Head and Neck Surgery and Leuven Cancer Institute University Hospitals Leuven Leuven Belgium
6. Department of Oncology, Section of Head and Neck Oncology KU Leuven Leuven Belgium
7. Department of Otorhinolaryngology – Head and Neck Surgery, Helsinki University Hospital University of Helsinki Helsinki Finland
8. Research Program in Systems Oncology, Faculty of Medicine University of Helsinki Helsinki Finland
9. Department of Otolaryngology, Hospital Universitario Central de Asturias University of Oviedo, ISPA, IUOPA, CIBERONC Oviedo Spain
10. Department of Otolaryngology – Head and Neck Surgery, Faculty of Medicine Graduate School of Medicine, Hokkaido University Hokkaido Japan
11. Department of Head & Neck Surgery The University of Texas M. D. Anderson Cancer Center Houston Texas USA
12. International Head and Neck Scientific Group Padua Italy