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山东临朐１９８７年被全国肿瘤防治研究办公室定为全国胃癌高发研究现场。北京市肿瘤防治研究所在该地区建立胃癌研究现场，与美国国立癌症研究所（ＮＣＩ）合作开展了胃癌流行病学研究，１９８６年～１９８８年是病例对照研究，１９８９年～１９９４年是胃癌癌前病变、病变转
Shandong Linqu 1987 by the National Cancer Research Office as the national high incidence of gastric cancer research site. Beijing Institute of Cancer Research in the region to establish a gastric cancer research site, and the United States National Cancer Institute (NCI) conducted a study of gastric cancer epidemiology, 1986 ~ 1988 is a case-control study, 1989 to 1994 is a cancer of the stomach Pre-lesion, pathological change