1. Department of Otorhinolaryngology, Head and Neck Surgery University Hospital Munich Marchioninistr. 15 Munich 81377 Germany
2. Epigenetics and Genomics The Harry Perkins Institute of Medical Research 6 Verdun St Nedlands Western Australia 6009 Australia
3. Clinical Cooperation Group “Personalized Radiotherapy in Head and Neck Cancer” Helmholtz Zentrum Marchioninistr. 25 Munich 81377 Germany
4. Department of Otorhinolaryngology, Head and Neck Surgery University Hospital Regensburg Franz‐Josef‐Strauß‐Allee 11 Regensburg 93047 Germany