1. Pediatric Hepatology and Liver Transplant Unit Vall d'Hebron University Hospital Barcelona Spain
2. Pediatric Oncology and Hematology Department Vall d'Hebron University Hospital Barcelona Spain
3. Pediatric Infectious Diseases and Immunodeficiencies Unit Vall d'Hebron University Hospital Barcelona Spain
4. Microbiology Department Vall d'Hebron University Hospital Barcelona Spain
5. Histology Department Vall d'Hebron University Hospital Barcelona Spain
6. HPB Surgery and Transplantation Department Vall d'Hebron University Hospital Barcelona Spain