Hisa Takeshi, Ohkubo Hiroki, Shiozawa Satoshi, Ishigame Hiroki, Furutake Masayuki, Takamatsu Masato
Department of Internal Medicine, Saku Central Hospital, Saku, Nagano, Japan.
Gastrointest Endosc. 2008 Dec;68(6):1229-32. doi: 10.1016/j.gie.2008.02.079. Epub 2008 Jun 11.