1. Department of Surgery, St Claraspital, Basel, Switzerland
2. Department of Clinical Research, St Claraspital, Basel, Switzerland
3. Department of Biomedicine, University Hospital of Basel, Basel, Switzerland
4. Department of Internal Medicine, St Claraspital, Basel, Switzerland
5. Department of Visceral and Transplantation Surgery, University Hospital, Zürich, Switzerland
6. Department of Surgery, University Hospital, Bern, Switzerland
7. Swiss Medical and Surgical Center, St Gallen, Switzerland
8. Department of Pharmacology and Toxicology, University Hospital, Basel, Switzerland
9. Department of Surgery, Kantonsspital, St Gallen, Switzerland