Koo Chieh Sian, Siah Kewin Tien Ho, Low How Cheng, Koh Calvin Jianyi
Division of Gastroenterology and Hepatology, National University Hospital, Singapore.
Yong Loo Lin School of Medicine, National University of Singapore.
Endoscopy. 2020 Dec;52(12):E463-E464. doi: 10.1055/a-1230-3325. Epub 2020 Sep 3.