1. Department of Surgery, School of Medicine, Universidad de Antioquia, Medellin, Colombia
2. CEXCA Centro de Excelencia en Enfermedades de Cabeza y Cuello, Medellin, Colombia
3. Department of Otorhinolaryngology–Head & Neck Surgery, Hospital Universitario Donostia-Biodonostia Research Institute, San Sebastian, Spain
4. Department of Otorhinolaryngology, Jena University Hospital, Jena, Germany
5. Head and Neck Surgery and Otorhinolaryngology Department, A C Camargo Cancer Center, Sao Paulo, Brazil
6. Head and Neck Surgery Department, University of Sao Paulo Medical School, Sao Paulo, Brazil
7. Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
8. Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
9. Department of Head Neck Surgical Oncology, All India Institute of Medical Sciences, Raipur, India
10. Coordinator of the International Head and Neck Scientific Group, Padua, Italy