1. Institute of Medical BiostatisticsEpidemiology and Informatics (IMBEI), University Medical Centre Mainz Mainz Germany
2. University Cancer Centre Mainz Mainz Germany
3. Department of OtorhinolaryngologySana‐Klinikum Remscheid Remscheid Germany
4. Department of OtorhinolaryngologyJena University Hospital Jena Germany
5. Rehabilitation Clinic Bavaria Kreischa Germany
6. Department of OtorhinolaryngologySection of Phoniatrics and Audiology, University of Leipzig Leipzig Germany
7. Community‐based Oncology Practice Delitzsch Germany
8. Department of Medical Psychology and Medical SociologyUniversity Medical Centre Leipzig Leipzig Germany