1. Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
2. Institute for Medical Statistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
3. Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany