1. Department of Gastroenterology and HepatologyRadboud University Medical CenterNijmegenThe Netherlands
2. European Reference Network Hepatological Diseases (ERN RARE-LIVER)HamburgGermany
3. 1st Department of Internal MedicineUniversity Medical Center Hamburg-EppendorfHamburgGermany
4. Martin Zeitz Centre for Rare DiseasesUniversity Medical Centre Hamburg-EppendorfHamburgGermany