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作者应用荟萃分析法评估了幽门螺杆菌(Ｈｐ)感染与胃癌关系的流行病学证据。病人和方法 相关研究检索主要来自医学数据库 (包括ＭＥＤＬＩＮＥ等 ) ,此外还有手工检索以及由国际流行病学和胃肠病学专家收集的未发表的研究资料。本研究的文献检索不受语种限制。如文章内容重复
The authors used meta-analysis to assess the epidemiological evidence of the relationship between Helicobacter pylori (Hp) infection and gastric cancer. PATIENTS AND METHODS The relevant research searches were mainly from medical databases (including MEDLINE et al.), as well as manual searches and unpublished research data collected by international epidemiologists and gastroenterologists. The literature search of this study is not limited by language. Duplicate content