我相信有效性研究是足够和适当对照的。

I believe that the efficacy studies were adequate and well controlled.

youdao

毫无疑问，其他国家只是在一定范围内使用比较有效性研究。

There is no doubt that other countries use comparative-effectiveness research as the basis for rationing.

youdao

静脉注射甾类激素治疗顽固性妊娠呕吐的有效性研究。

Pulsed steroid therapy is an effective treatment for intractable hyperemesis gravidarum.

youdao

Then, they did preliminary studies of safety and effectiveness in people.

接着,研究人员对疫苗在人体中的,安全性和有效性进行初步研究

耶鲁公开课 - 生物医学工程探索课程节选