1. Division of Gastroenterology and Hepatology University Hospital of Zürich Zürich Switzerland
2. Centre for Primary Health Care University of Basel Basel Switzerland
3. Laboratory for Brain‐Gut Axis Studies, Translational Research Centre for Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism, and Ageing KU Leuven Leuven Belgium
4. Cognitive and Affective Neuroscience Lab, Department of Psychological and Brain Sciences Dartmouth College Hanover New Hampshire USA
5. St. Clara Research Ltd, St. Claraspital Basel Switzerland