| [exploration of the association of h. pylori and ebv infection with cardiac and distal gastric adenocarcinoma among residents in cixian county, a high-risk area of esophgeal cancer in hebei province]. | to evaluate the h. pylori and epstein-barr virus infection in cardiac and distal gastric adenocarcinoma tissues in residents in cixian county, a high risk area of esophageal cancer in hebei province, and to explore the putative role of h. pylori and epstein-barr virus infection in the carcinogenesis of adenocarcinoma at different subsites of stomach. | 2012 | 22967447 |