Prof. Dr. med. Kristen Rak is an MD and senior consultant and deputy to the clinical director at the Department of Otorhinolaryngology of the University of Würzburg. In addition he is the senior physician of the section “hearing prostheses and cochlear implantation”. His clinical specialties are in otology, especially cochlear implants, active middle ear implants and middle ear surgery. These areas are also his main interest in research alongside with radiological diagnostics of the inner ear structures, navigation of the lateral skull base and inner ear biology.  He is the author/coauthor of over 100 peer reviewed articles.