1. Department of Radiation Oncology, Technical University of Munich (TUM), München, Germany
2. Institute of Radiation Medicine, Helmholtz Zentrum München, Neuherberg, Germany
3. Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Prague, Czech Republic
4. Deutsches Konsortium für Translationale Krebsforschung, (DKTK)-Partner Site Munich, München, Germany