Ono Y, Hirabayashi K, Ishida M, Sakuma K, Tomita S, Sano Y, Ichikawa K, Terano A, Ueda Y, Fujimori T. Helicobacter pylori infection in early gastric adenocarcinoma: relationship between histologic subtypes and ulcer-formation. J Physiol Pharmacol. 1997 Sep;48 Suppl 4:123-31.PMID:9440063 [PubMed – indexed for MEDLINE]