Law Siu-Tong, Wong Cheuk Kei Kathy, Chow Kai Chiu, Loo Ka Tai
Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Tuen Mun, Hong Kong SAR, China.
J Dig Dis. 2012 Oct;13(10):549-52. doi: 10.1111/j.1751-2980.2012.00624.x.