Professor Dalekos is Head of Department of Medicine and Research Laboratory of Internal Medicine, Greek Expertise Center in Autoimmune Liver Diseases, European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Larissa General University Hospital, Greece. He graduated from Athens National University in 1985 and he earned Internal Medicine and his PhD in 1995. He is currently official member of many respectful authorities (EFIM, International AIH and PBC Groups, AASLD, EASL, etc.). Prof. Dalekos was Elected Vice President of Internal Medicine Society of Greece (2012-2018) and Elected Vice President and President of Hellenic Association for the Study of Liver (2013-2015 and 2015-2017). Currently, he is on the Executive Committee of Hellenic Society of Internal Medicine. His main interests are AIH, PBC, immunopathogenesis/management of viral hepatitis, and clinical immunology. Prof. Dalekos has acted as reviewer in >165 journals and published >330 manuscripts in highly ranking journals (>18.500 citations; h-index: 67). He is currently or has acted as Academic Editor or Editorial Board member in many journals (J Hepatol, Eur J Intern Med, Liver Int, Case Reports Infect Dis, Cancers, World J Gastroenterol) and as Expert Reviewer for Research Projects in Internal Medicine (Medical Research Council and Wellcome Trust, England; Austrian Science Fund, etc.).