1. Department of Radiation Oncology (Maastro) Maastricht University Medical Centre Maastricht the Netherlands
2. Department of Neuroradiology and Head and Neck Imaging Princess Margaret Cancer Centre, University of Toronto Toronto Ontario Canada
3. Department of Radiation Oncology Princess Margaret Cancer Centre, University of Toronto Toronto Ontario Canada
4. Department of Otolaryngology – Head & Neck Surgery Princess Margaret Cancer Centre, University of Toronto Toronto Ontario Canada
5. Department of Radiology and Nuclear Medicine Maastricht University Medical Centre Maastricht the Netherlands
6. School for Mental Health and Sciences Maastricht University Maastricht the Netherlands
7. Department of Neuroradiology and Head and Neck Imaging Cleveland Clinic Taussig Cancer Institute Cleveland Ohio USA
8. Department of Radiation Oncology Cleveland Clinic Taussig Cancer Institute Cleveland Ohio USA
9. Department of Biostatistics Princess Margaret Cancer Centre, University of Toronto Toronto Ontario Canada