Lin found the protective effect especially evident in a group of smokers she studied who have specific genotypes that have been linked to cancer risk in some studies.

林女士发现这种防护效果在她研究的一组吸烟者中尤为明显，这一组吸烟者具有特定的基因型，已在一些研究中证实有癌症风险。

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Lin found the protective effect especially evident in a group of smokers she studied who have specific genotypes that have been linked to cancer risk in some studies.

林女士发现这种防护效果在她研究的一组吸烟者中尤为明显，这一组吸烟者具有特定的基因型，已在一些研究中证实有癌症风险。

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