1. Department of Pediatric Gastroenterology, Hepatology and Nutrition, Sant Joan de Déu Hospital (SJDH), Barcelona, Spain.
2. SJDH-VHH Comprehensive Unit of Complex Hepatology and Pediatric Liver Transplantation, Barcelona, Spain.
3. Department of Pediatric Gastroenterology and Hepatology, Vall d'Hebron Hospital (VHH), Barcelona, Spain.
4. Department of Pediatric Gastroenterology and Hepatology, University Hospital Complex of Santiago de Compostela, Santiago de Compostela, Spain.