1. Department of Otorhinolaryngology, Head and Neck Surgery Ludwig‐Maximilians‐University Munich Germany
2. Research Unit Radiation Cytogenetics Helmholtz Zentrum München Neuherberg Germany
3. Research Unit Analytical Pathology Helmholtz Zentrum München Neuherberg Germany
4. Institute of Pathology Faculty of Medicine LMU Munich Germany
5. Clinical Cooperation Group “Personalized Radiotherapy in Head and Neck Cancer“ Helmholtz Zentrum München Neuherberg Germany
6. Department of Radiation Oncology Ludwig‐Maximilians‐University Munich Germany
7. Department of Therapeutic Radiology and Oncology Medical University of Innsbruck Austria