He is professor and director of Inflammatory Bowel Disease Centre at McGill University, MUHC. Until January 2017 he was head of the gastroenterology/hepatology ward, endoscopy unit and outpatient clinic at the 1st Department of Medicine, Semmelweis University in Budapest, Hungary. He is one of the founders and leader of the Hungarian Inflammatory Bowel Disease Study Group, council member of the Hungarian Society for Gastroenterology and president elect of the Colon Section. He is member of educational committee in ECCO and IOIBD member. He is regular reviewer in leading international journals in gastroenterology/hepatology, section editor in Inflammatory Bowel Diseases, BMC Gastroenterology and associate editor in J Crohn’s Colitis and World Journal of Gastroenterology. During his career he published more than 350 original papers and reviews including 25 book chapters. His primary research interest is the epidemiology, outcome and biomarkers in prediction of disease progression and response to medical therapy in inflammatory bowel disease.