Endoscopic classification of chronic gastritis based on a pilot study by the research society for gastritis.
Kaminishi M, Yamaguchi H, Nomura S, Oohara T, Sakai S, Fukutomi H, Nakahara A, Kashimura H, Oda M, Kitahora T, Ichikawa H, Yabana T, Yagawa Y, Sugiyama T, Itabashi M, Unakami M, Oguro Y, Sakita T.