1. Department of Paediatrics; University of Cambridge; Cambridge UK
2. Histopathology Unit; Bambino Gesu Hospital, IRCCS; Rome Italy
3. Hepatometabolic Unit; Bambino Gesu Hospital, IRCCS; Rome Italy
4. Liver Research Unit; Bambino Gesu Hospital, IRCCS; Rome Italy
5. National Institute for Health Research, Birmingham Liver Biomedical Research Unit and Centre for Liver Research; University of Birmingham; Birmingham UK
6. Medical Directorate; Bambino Gesu Hospital, IRCCS; Rome Italy
7. Paediatric Gastroenterology and Hepatology, Children's Hospital; Hannover Medical School; Hannover Germany