1. Department of Medical Psychology and Medical Sociology, Section Psychosocial Oncology; University of Leipzig; Leipzig Germany
2. Department of Psychosomatic Medicine; University Medical Center Leipzig; Leipzig Germany
3. Department of Otorhinolaryngology and Head and Neck Surgery; University Medical Center Leipzig; Leipzig Germany
4. Department of Otorhinolaryngology; Clinical Center Sankt Georg Leipzig; Leipzig Germany
5. Department of Otorhinolaryngology; Clinical Center Dresden-Friedrichstadt; Dresden Germany
6. Department of Otorhinolaryngology and Head and Neck Surgery; Clinical Center Elbland; Riesa Germany
7. Department of Epidemiology and Health Care Research; Institute of Medical Biometrics, Epidemiology and Informatics; University Medical Center Mainz; Mainz Germany