1. Division of Pediatric Gastroenterology and Hepatology; Department of Pediatric Kidney, Liver and Metabolic Diseases; Hannover Medical School; Hannover Germany
2. Core Facility Quality Management & Health Technology Assessment in Transplantation; Integrated Research and Treatment Center Transplantation (IFB-Tx); Hannover Medical School; Hannover Germany
3. Department of Gastroenterology and Nutrition; Royal Children′s Hospital; Melbourne Australia
4. Department of Epidemiology; Helmholtz Centre for Infection Research; Braunschweig Germany
5. Division of Pediatric Nephrology; Department of Pediatric Kidney, Liver and Metabolic Diseases; Hannover Medical School; Hannover Germany
6. General, Visceral and Transplant Surgery; Hannover Medical School; Hannover Germany
7. Birmingham Children´s Hospital; Liver Unit and University of Birmingham; Institute of Immunology and Immunotherapy; UK