Professor Justin Wu is the Chairman of CUHK Medical Services and Professor of Gastroenterology of Instutute of Digestive Disease, CUHK. He is specialized in functional gastrointestinal disorders, gastroesophageal reflux disease and GI motility with over 200 publications including first-authored papers in Gastroenterology and Gut. Professor Wu served as the President of Hong Kong Society of Gastroenterology, Secretary General of Asian Pacific Association of Gastroenterology (APAGE) and Asian Neurogastroenterology and Motility Association (ANMA), and the President of Asia Pacific Digestive Week (APDW) 2017 in Hong Kong. He has served as an associate editor for the Neurogastroenterology & Motility, American Journal of Gastroenterology, and Journal of Gastroenterology and Hepatology.