1. Department of Pediatrics; Pediatric Gastroenterology and Hepatology; University Medical Center Hamburg-Eppendorf; Hamburg; Germany
2. Department of Pediatrics; Pediatric Nephrology; University Medical Center Hamburg-Eppendorf; Hamburg; Germany
3. Department of Pediatrics; Pediatric Nephrology; Children's Hospital Munich-Schwabing; Munich; Germany
4. Department of Pediatric Radiology; University Medical Center Hamburg-Eppendorf; Hamburg; Germany
5. Department of Pathology; University Medical Center Hamburg-Eppendorf; Hamburg; Germany
6. Department of Hepatobiliary Surgery and Visceral Transplantation; University Medical Center Hamburg-Eppendorf; Hamburg; Germany
7. Pediatric Hepatology and Liver Transplantation; University Medical Center Hamburg-Eppendorf; Hamburg; Germany