Affiliation: | 1. Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany;2. Department of Gastroenterology, Hepatology and Endemic Medicine, Beni Suef University, Beni Suef, Egypt;3. Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany;4. Department of Visceral and Transplantation Surgery, Hannover Medical School, Hannover, Germany |