Ang Tiing Leong, Kwek Andrew Boon Eu, Poh Wee Teng
Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore.
Department of Laboratory Medicine, Changi General Hospital, Singapore.
Endoscopy. 2016;48 Suppl 1:E121-2. doi: 10.1055/s-0042-104280. Epub 2016 Mar 23.