Spira says he has also found gene expression differences in a study using healthy former smokers.

Spira称，一项对健康戒烟者进行的研究也发现了基因表达的差异。

youdao

Spira says he has also found gene expression differences in a study using healthy former smokers.

Spira称，一项对健康戒烟者进行的研究也发现了基因表达的差异。

youdao