1. Division of Medical Oncology; GROW - School for Oncology and Developmental Biology, Maastricht University Medical Center; Maastricht The Netherlands
2. Department of Radiation Oncology (MAASTRO); GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre; Maastricht The Netherlands
3. Department of Otolaryngology/Head and Neck Surgery; Maastricht University Medical Centre; Maastricht The Netherlands
4. Department of Medical Oncology; Radboud University Nijmegen Medical Centre; Nijmegen The Netherlands
5. Department of Pathology; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands