1. Department of Nuclear Medicine; University Medical Center, Johannes Gutenberg-University; Mainz Germany
2. Department of Anatomy and Cell Biology; University Medical Center, Johannes Gutenberg-University; Mainz Germany
3. Department of Otorhinolaryngology; Elbe-Kliniken; Stade Germany
4. Molecular Physiology of Hearing, Hearing Research Center; University of Tübingen; Tübingen Germany