Tea intake was assessed by questionnaire, once at the beginning of the study and then again five years later.

通过问卷调查估计茶摄入量，一次在研究开始时，再一次在5年后。

youdao

Tea intake was assessed by questionnaire, once at the beginning of the study and then again five years later.

通过问卷调查估计茶摄入量，一次在研究开始时，再一次在5年后。

youdao