目的：评价P -转移因子口服液（P -TFO）防治小儿呼吸道感染的作用。

Purpose: Value P-TFO curative effect to prevent and cure infantile respiratory trace infection.

youdao

目的：评价P -转移因子口服液（P -TFO）防治小儿呼吸道感染的作用。

Purpose: Value P-TFO curative effect to prevent and cure infantile respiratory trace infection.

youdao