Professor Hadzic is a Professor of Paediatric Hepatology. He has been a Senior Paediatric Hepatologists in the Paediatric Liver Service at King's College Hospital for more than 20 years. Professor Hadzic runs active research programmes focusing on biliary stresia, alpha-1 antitrypsin deficiency, metabolic liver based disorders, autoimmune liver disease and paediatric liver transplantation. He serves as a member of several international editorial boards, government advisory committees and research groups. He has also published more than 200 papers, reviews and book chapters.

Trained at University Hospital Sarajevo, Bosnia-Herzegovina, VMA Belgrade, Serbia, Great Ormond Street, London, UK and King's College Hospital, London, UK