1. Department of GastroenterologyHannover Medical School Hannover Germany
2. Institute for Physiological Chemistry Martin‐Luther University Halle (Saale) Germany
3. Institute of Medical Microbiology and Hospital EpidemiologyHannover Medical School Hannover Germany
4. Department of Gastroenterology Tongji HospitalHuazhou University of Technology and Science Wuhan China
5. Department of Hepatobiliary and Transplantation Surgery First affiliated Hospital Zheijang University Hangzhou China
6. Faculty of Medicine Max von Pettenkofer InstituteLMU Munich Munchen Germany