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 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。
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