1. Department of Otorhinolaryngology-Head and Neck Surgery; University Hospitals Leuven; Leuven Belgium
2. Department of Oncology, Section of Head and Neck Oncology; Katholieke Universiteit Leuven; Leuven Belgium
3. Department of Radiotherapy-Oncology; University Hospitals Leuven; Leuven Belgium
4. Department of Radiology; University Hospitals Leuven; Leuven Belgium
5. Department of Pathology; University Hospitals Leuven; Leuven Belgium