جامعة هاله
From 1993 to 2003 he was a director of the department of otorhinolaryngology, face and neck surgery, and professor of the department of otorhinolaryngology at the Martin Luther University of Halle-Wittenberg. He was dean at the medical faculty there in 1994 and pro-dean from 1996 to 1998. Since 2003 he has been director of the department of otorhinolaryngology at the Medical Campus of the University of Munich and professor of otorhinolaryngology at the Ludwig Maximilian University of Munich.