Since 2018
Cooperation program between the Qatar Ministry of Health and Heidelberg University Hospital Member of the Steering Committee
Since 2016
American Surgical Association (ASA) Honorary Fellows Advisory Sub-Committee board member, Northern Europe Region
2011 - 2014
American Surgical Association (ASA), ASA subcommittee advisory board member, Region Nordeuropa
Since 2004
Director of the Study Center of the German Society for Surgery (DGCH), Heidelberg University