1. Medical Clinic III Gastroenterology, Metabolic Diseases and Intensive Care University Hospital RWTH Aachen Aachen Germany
2. Department of Biobehavioral Health Sciences Perelman School of Nursing University of Pennsylvania Philadelphia Pennsylvania USA
3. Department of Psychiatry, Psychotherapy and Psychosomatics University Hospital RWTH Aachen Aachen Germany
4. Institute for Translational Psychiatry University of Münster Münster Germany
5. Division of Gastroenterology‐Hepatology Department of Internal Medicine Maastricht University Medical Center+ Maastricht the Netherlands
6. The Institute for Translational Medicine and Therapeutics The Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA