1. Department of Gastroenterology and Hepatology, University Hospital Zürich, University of Zurich, Switzerland
2. Novartis Institutes for Biomedical Research, Basel, Switzerland
3. Functional Genomics Center Zurich, ETH Zurich/University of Zurich, Zurich, Switzerland
4. Institute of Physiology, University of Zurich, Switzerland
5. Zurich Center for Integrative Human Physiology, Zurich, Switzerland