Kume K, Sakata H, Yoshikawa I, Watanabe T, Harada M
Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyusyu, Japan.
Endoscopy. 2009;41 Suppl 2:E265-6. doi: 10.1055/s-0029-1215200. Epub 2009 Oct 28.