1. Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center, Ludwig Maximilians University of Munich, Munich, Germany
2. Department of Otorhinolaryngology, Head and Neck Surgery, University of Göttingen, Göttingen, Germany
3. Institute of Medical Informatics, Biometry, and Epidemiology, Ludwig-Maximilians-University of Munich, Munich, Germany
4. MGZ-Medizinisch Genetisches Zentrum, Munich, Germany
5. Helmholtz-Zentrum München, German Research Center for Environmental Health, Munich, Germany
6. Clinical Cooperation Group Molecular Oncology, Helmholtz-Zentrum München, German Research Center for Environmental Health, and Head and Neck Research Dept. Ludwig-Maximilians-University of Munich, Munich, Germany