OBJECTIVE To study the effect of breast-feeding on infectious disease of infants.

目的探讨母乳喂养对婴儿患感染性疾病的影响。

youdao

OBJECTIVE To study the effect of breast-feeding on infectious disease of infants.

目的探讨母乳喂养对婴儿患感染性疾病的影响。

youdao