1. Clarunis, Department of Visceral Surgery, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
2. Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
3. Department of Biomedicine (DBM), University of Basel, University Hospital Basel, Basel, Switzerland
4. Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
5. Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
6. Department of Clinical Research, University of Basel, Basel, Switzerland
7. Chirurgie Zentrum St. Anna, Lucerne, Switzerland
8. Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland