1. Department of Head and Neck Oncology and Surgery Netherlands Cancer Institute/Antoni van Leeuwenhoek Amsterdam The Netherlands
2. Department of Oral and Maxillofacial Surgery Amsterdam University Medical CenterUniversity of Amsterdam Amsterdam The Netherlands
3. Division of Psychosocial Research and Epidemiology Netherlands Cancer Institute/Antoni van Leeuwenhoek Amsterdam The Netherlands
4. The Nationwide Network and Registry of Histo‐ and Cytopathology in the Netherlands (PALGA Houten The Netherlands
5. Department of Pathology Erasmus Medical Centre Rotterdam The Netherlands
6. Department of Radiation Oncology Leiden University Medical CenterUniversity of Leiden Leiden The Netherlands
7. Division of Molecular Pathology Netherlands Cancer Institute/Antoni van Leeuwenhoek Amsterdam The Netherlands
8. Netherlands Comprehensive Cancer Organization (IKNLDepartment of Research and Development Utrecht The Netherlands
9. Department of Epidemiology University of GroningenUniversity Medical Centre Groningen Groningen The Netherlands