Tseng C-W, Tsai J-J, Chen C-C
Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital and National Yang-Ming University School of Medicine, Taipei, Taiwan, Republic of China.
J Gastroenterol Hepatol. 2009 Feb;24(2):325. doi: 10.1111/j.1440-1746.2008.05766.x.