Objective To study on the relation between trace element in hair and hypertension.

目的探讨原发性高血压与头发中微量元素的关系。

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Therefore, the study on port-city relation is extremely essential.

因此，研究港城关系是十分必要的。

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Study on the Relation between Research Productivity and Teaching Effectiveness in University;

他的研究成果和你的研究成果有关联。

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Study on the Relation between Research Productivity and Teaching Effectiveness in University;

他的研究成果和你的研究成果有关联。

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