1. Department of Gastroenterology, Hepatology and Endocrinology Hannover Medical School Hannover Germany
2. European Reference Network on Hepatological Diseases (ERN RARE‐LIVER)
3. Institute of Internal Medicine and Hepatology Larissa Greece
4. Department of Medicine and Research Laboratory of Internal Medicine National Expertise Center of Greece in Autoimmune Liver Diseases General University Hospital of Larissa Larissa Greece
5. 1st Department of Medicine University Medical Centre Hamburg‐Eppendorf (UKE) Hamburg Germany
6. Institute for Pathology Hannover Medical School Hannover Germany
7. Martin Zeitz Centre for Rare Diseases University Medical Centre Hamburg‐Eppendorf (UKE) Hamburg Germany