After qualitative study, there was a quantitative study on these two genes' expression.

在这两个基因表达的定性研究之后，还对这两个基因的表达进行了定量研究。

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Part iv: Quantitative study on the relationship between human capital and economic growth of China.

第四部分：中国人力资本与经济增长关系的定量研究。

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Part iv: Quantitative study on the relationship between human capital and economic growth of China.

第四部分：中国人力资本与经济增长关系的定量研究。

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