Hosaka Shigetoshi, Matsuzawa Kenji, Maruyama Kazutoshi, Ota Hiroyoshi, Akamatsu Taui, Kiyosawa Kendo
Department of Internal Medicine, Maruko Central and General Hospital, Nagano Prefecture, Japan.
Dig Dis Sci. 2003 Feb;48(2):295-8. doi: 10.1023/a:1021923325881.