Hsu Kuo-Feng, Tsai Yuan-Ming, Liu Yao-Chi
Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.
Gastroenterology. 2012 Mar;142(3):433, 678. doi: 10.1053/j.gastro.2011.08.044. Epub 2012 Jan 24.