Yen T-J, Hsiao C-H, Hu R-H, Liu K-L, Chen C-H
Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
J Gastroenterol Hepatol. 2011 Mar;26(3):611. doi: 10.1111/j.1440-1746.2011.06679.x.