1. Department of Surgery Universidad de Antioquia Medellín Colombia
2. CEXCA Centro de Excelencia en Enfermedades de Cabeza y cuello Medellín Colombia
3. Department of Otorhinolaryngology – Head & Neck Surgery Hospital Universitario Donostia‐Biodonostia Research Institute San Sebastian Spain
4. Department of Head and Neck Surgery, Hospital Universitario Central de Asturias (HUCA)‐Instituto Universitario de Oncología del Principado de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias University of Oviedo, CIBERONC Oviedo Spain
5. Laboratory of Environmental Research, Department of Toxicology Poznan University of Medical Sciences Poznan Poland
6. Department of Otorhinolaryngology Jena University Hospital Jena Germany
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 Otorhinolaryngology – Head and Neck Surgery NHS Lothian Edinburgh UK
10. Division of Otolaryngology – Endocrine Head and Neck Surgery, Massachusetts Eye and Ear Infirmary Harvard University Boston Massachusetts USA
11. ENT Unit Policlinico Città di Udine Udine Italy
12. Head and Neck Service Memorial Sloan‐Kettering Cancer Center New York New York USA
13. FPG Thyroid and Parathyroid Center, Division of Head and Neck Endocrine Surgery The Sarasota Memorial Health Care System Sarasota Florida USA
14. Department of Head and Neck Surgery The University of Texas M. D. Anderson Cancer Center Houston Texas USA
15. Coordinator of the International Head and Neck Scientific Group Padua Italy