(1)IRCCS San Raffaele Scientific Institute, Medical Physics, Milan, Italy;(2)IRCCS San Raffaele Scientific Institute, Radiotherapy, Milan, Italy;(3)IRCCS San Raffaele Scientific Institute, Nuclear Medicine, Milan, Italy;(4)IRCCS San Raffaele Scientific Institute, Oncology, Milan, Italy;(5)Cardiff University, School of Engineering, Cardiff, United Kingdom;

(1)Helmholtz Zentrum Muenchen - German Research Center for Environmental Health, Research Unit Radiation Cytogenetics, Munich, Germany;(2)University Hospital LMU Munich, Department of Radiation Oncology, Munich, Germany;(3)Helmholtz Zentrum Muenchen - German Research Center for Environmental Health, Clinical Cooperation Group "Personalized Radiotherapy in Head and Neck Cancer", Munich, Germany;(4)University of Luebeck, Luebeck Institute of Experimental Dermatology and Institute for Cardiogenetics, Luebeck, Germany;(5)University Hospital Schleswig Holstein Campus Luebeck, Clinic for Otorhinolaryngology - Head and Neck Surgery, Luebeck, Germany;(6)University Hospital Schleswig-Holstein Campus Luebeck, Institute of Pathology, Luebeck, Germany;(7)Ludwig-Maximilians University, Institute for Pathology, Munich, Germany;(8)Helmholtz Zentrum Muenchen - German Research Center for Environmental Health, Research Unit Analytical Pathology, Munich, Germany;(9)University Hospital Schleswig Holstein Campus Luebeck, Institute of Pathology, Luebeck, Germany;

(1)Taunton & Somerset NHS Foundation Trust, Radiotherapy- The Beacon Centre, Taunton, United Kingdom;(2)National Radiotherapy Trials QA Group, Mount Vernon Cancer Centre, Middlesex, United Kingdom;

(1)Radboudumc, oncology, Nijmegen, The Netherlands;