1 Department of Gastroenterology and Hepatology, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
2 Department of Gastroenterology and Hepatology, Leiden University Medical Centre, Leiden, The Netherlands.
3 Department of Gastroenterology and Hepatology, Radboudumc, Nijmegen, the Netherlands; European Reference Network on Hepatological Diseases (ERN RARE-LIVER). Electronic address: [email protected].