Hirasawa Kingo, Tokoro Chikako, Yasuzaki Hiroaki, Yokoyama Nobuyuki, Tomiyama Masakazu, Matsukawa Hiroshi, Nagano Atsushi, Kawano Naomi
Department of Gastroenterology, Yokohama Minamikyousai Hospital.
Nihon Shokakibyo Gakkai Zasshi. 2004 Mar;101(3):300-5.