Hanai H, Honda S, Sugimoto K, Kageoka M, Iwasaki H, Higuchi R, Horio Y, Watanabe F, Kaneko E
Department of Endoscopic Medicine and Photodynamic Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Gastrointest Endosc. 1999 Nov;50(5):715-7. doi: 10.1016/s0016-5107(99)80033-9.