1. Department of Surgery Campus Virchow‐Klinikum and Campus Charité Mitte Charité‐Universitätsmedizin Berlin Berlin Germany
2. Department of Hepatology and Gastroenterology Campus Virchow‐Klinikum and Campus Charité Mitte Charité‐Universitätsmedizin Berlin Berlin Germany
3. Department of General Visceral, and Transplantation Surgery University Hospital Aachen Rhine‐Westphalia Institute of Technology Aachen Germany
4. Department of General, Visceral, and Vascular Surgery Evangelisches Krankenhaus Paul Gerhardt Stift Lutherstadt Wittenberg Germany
5. Berlin Institute of Health Berlin Germany
6. Department of Internal Medicine and Gastroenterology Asklepios Klinik St. Georg Asklepios Medical School Hamburg Germany
7. Department of General, Visceral, and Transplantation Surgery Münster University Hospital Münster Germany