英国的研究者对46,000名口服避孕药的妇女进行了随访，然后将其死亡率与未服避孕药的妇女进行对比。

Researchers in the United Kingdom followed more than 46,000 women who took the pill and then compared the mortality rate of those women with women who did not take birth control pills.

youdao

英国的研究者对46,000名口服避孕药的妇女进行了随访，然后将其死亡率与未服避孕药的妇女进行对比。

Researchers in the United Kingdom followed more than 46,000 women who took the pill and then compared the mortality rate of those women with women who did not take birth control pills.

youdao