1. Laboratory of Radiobiology & Experimental Radiooncology, University Medical Center Hamburg - Eppendorf, Hubertus Wald Tumorzentrum – University Cancer Center Hamburg, 20246 Hamburg, Germany
2. Department of Oncology and Hematology, BMT with section Pneumology, University Medical Center Hamburg - Eppendorf, Hubertus Wald Tumorzentrum – University Cancer Center Hamburg, 20246 Hamburg, Germany
3. Department of Otorhinolaryngology and Head and Neck Surgery, University Medical Center Hamburg - Eppendorf, Hubertus Wald Tumorzentrum – University Cancer Center Hamburg, 20246 Hamburg, Germany
4. Department of Otorhinolaryngology - Head and Neck Surgery, University of Turku and Turku University Hospital, 20521 Turku, Finland