University Heidelberg Clinic Logo

2004

Study Center of the German Society for Surgery
Director


2006

International Hepato-Pancreato-Biliary Association (IHPBA)
President


2009

Graduate College 1126 DFG
Speaker


2010

Clinical Research Group “Colorectal Cancer”
Speaker


2010

German Society for General and Visceral Surgery
President


2011

German Society for Surgery
President


2012

Collaborative Research Center 125 DFG
Spokesperson


Since 2014

ESPAC-5F study
Member of the steering committee


American Surgical Logo

Since 2016

American Surgical Association (ASA)
Honorary Fellows Advisory Sub-Committee
Board member, Northern Europe region


Since 2018

Cooperation program between the Ministry of Health of Qatar and Heidelberg University Hospital
Member of the steering committee