Objective To understand the effect of water improvement in endemic fluorosis area on caries in school boys and girls.
目的了解地方性氟中毒病区改水降氟对中、小学生龋患影响。
Objective To ascertain the range and harm degree of the area of Endemic Fluorosis in liang he and provide scientific basic to enact countermeasure of prevention and cure.
目的查明梁河县地氟病区范围及危害程度，为制定防治对策提供科学依据。
Objective To Study sensitive mark of biochemistry of bone metabolize of The Endemic Fluorosis by epidemiology examine and lab check up in high fluorine area of drinking water.
目的对饮水型高氟病区进行流行病学调查及实验室检测，研究地方性氟中毒患者骨代谢的生化敏感标志物。
Objective To survey the fluorosis baseline for implementing prevention and control endemic fluorosis program in a large area of Guizhou using Central Government Funds.
目的为实施贵州省利用中央财政专项资金防治地方性氟中毒(简称地氟病)项目进行本底调查，并为制订项目实施细则提供依据。
Endemic fluorosis is very serious in the Yellow River alluvial plain area in Shandong province.
山东黄河冲积平原区是山东省地氟病的重病区，危害严重。
The downstream region of the Yellow River in Shandong province is serious illness area of endemic fluorosis.
山东省黄河下游流域是山东省高碘地甲病重病区。
The downstream region of the Yellow River in Shandong province is serious illness area of endemic fluorosis.
山东省黄河下游流域是山东省高碘地甲病重病区。
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