1 Institute of Psychology, Heidelberg University, Hauptstraße 47-51, D-69117 Heidelberg, Germany; Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany. Electronic address: [email protected].
2 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany; Department of Psychosomatic Medicine, Division of Internal Medicine, University Hospital Basel, Hebelstrasse 2, CH-4031 Basel; Faculty of Medicine, University of Basel, Klingelbergstrasse 61, CH-4056 Basel, Switzerland. Electronic address: [email protected].
3 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany. Electronic address: [email protected].
4 Department of Gastroenterology and Hepatology, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany. Electronic address: [email protected].
5 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany. Electronic address: [email protected].
6 Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany. Electronic address: [email protected].