Research and control of well water pollution in high esophageal cancer areas

• 作 者: Xiu-LanZhang BingZhang XingZha
• 机 构: CancerInstitute,SchoolofPublicHealth,theFourthHospitalofHebeiMedicalUniversity,CixianCancerInstitute
• 出 处: 世界胃肠病学杂志：英文版（电子版）
• 发表日期: 2003年6期
• 关键词: 食管癌 发病率 饮水卫生 氮污染
• 基金项目: 教育部科研项目

AIM: In order to detect risk factors for esophageal cancer,a national research program was carried out during the Eighth Five-Year Plan (from 1991 to 1995).METHODS: Cixian County and Chichen County in Hebei Province were selected as the index and the cont