1. Department of Gastroenterology, Gastrointestinal Oncology, Hepatology, Infectious Diseases and Geriatrics, University Hospital Tuebingen, Otfried-Müller-Strasse 10, 72076 Tuebingen, Germany
2. Clinic for Anaesthesiology, Operative Intensive Care, Emergency Medicine and Pain Therapy, Klinikum Stuttgart, Kriegsbergstr. 60, 70174 Stuttgart, Germany
3. Max-Planck-Institut für Biologie Tuebingen, Department Microbiome Science, Max-Planck-Ring 5, 72076 Tuebingen, Germany
4. Bauchraum, Gastroenterologisches Zentrum, Bessemerstraße 7, 70435 Stuttgart, Germany