TAWESAK TANWANDEE, MD, FAASLD, AGAF. Tawesak Tanwandee, MD, is hepatologist at division of gastroenterology and hepatology at Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand where he has been working for past 30 years. His current position is Professor of Gastroenterology. He is currently steering member and past president of APASL as well as past president of Thai Association for the Study of the Liver (THASL). His research interest is about treatment of chronic hepatitis B and C, hepatocellular carcinoma and cost effective of treating hepatitis B and C. He received a MD with first class honor and gold medal and received Thai Board of Internal Medicine, Gastroenterology. He also spent 2 years as research fellow at Department of Molecular Virology, Baylor College of Medicine, Houston, TX. He is currently member of AGA, ACG, AASLD, EASL and APASL.