President of International Endohernia Society(IEHS)
Director of Department of General and Visceral Surgery, Marien hospital Stuttgart and Faculty, Medical University of Tübingen.
Director of the Hernia Center, Winghofer Medicum, Rottenburg
Founding President of the German Association of Minimal Invasive Surgery
Founding member of the German Hernia Society and Honorary President
Former President of the German Society of General and Visceral Surgery
Distinguished professor of Beijing Chao-Yang Hospital
Honors: Rudolf Pichlmayer Medal, Knight Cross