1. Department of Pediatric Gastroenterology and Hepatology; Beatrix Children’s Hospital; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
2. Department of Pathology; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
3. Laboratory of Transplant Immunology; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
4. Department of Hepatobiliary Surgery and Liver Transplantation; University of Groningen; University Medical Center Groningen; Groningen The Netherlands