1. Head and neck surgery University Hospital of Poitiers Poitiers France
2. Department of Head and Neck Oncology Gustave RoussyUniversity Paris‐Saclay Villejuif France
3. Head and neck surgery University Hospital of Grenoble Grenoble France
4. Head and neck surgery University Hospital of Lyon Lyon France
5. Radiation oncology Centre Henri Becquerel Rouen France
6. Head and neck surgery University Hospital of Bordeaux Bordeaux France
7. Radiation oncology Centre Jean Godinot Reims France
8. Head and neck surgery University Hospital of Tours Tours France
9. Head and neck surgery University Hospital of Caen Caen France
10. Head and neck surgery University Hospital of Nantes Nantes France
11. Head and neck surgery Institut Universitaire du Cancer de Toulouse Oncopole / University Hospital of Toulouse Toulouse France
12. Radiation oncology University Hospital of Brest Brest France
13. Radiation oncology Centre François Baclesse / ARCHADE Caen France
14. Cellule Data Biostatistique Institut de Cancérologie de Lorraine Université de Lorraine Vandœuvre‐lès‐Nancy France