1. Regional Institute of Gastroenterology and Hepatology Octavian Fodor, Cluj-Napoca, Romania
2. University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania
3. Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
4. M3 Research Institute, Medical Faculty Tuebingen (MFT), Tuebingen, Germany
5. School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
6. Centre for Digestive Diseases, Lausanne, Switzerland