1. Department of Gastroenterology National and Kapodistrian University of Athens School of Health SciencesGeneral Hospital of Athens “Laiko” Athens Greece
2. Division of Gastroenterology and Hepatology Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
3. 2nd Department of Internal Medicine National and Kapodistrian University of Athens School of Health SciencesGeneral Hospital of Athens “Hippokratio” Athens Greece
4. Department of Medicine and Research Laboratory of Internal Medicine National Expertise Center in Autoimmune Liver DiseasesGeneral University Hospital of Larissa Larissa Greece