Objective: to investigate the practical level of serum trace element in infant with breast feeding, and to compare them with that with non-breast feeding.

目的：探讨母乳喂养婴儿血清中微量元素的实际水平，并与非母乳喂养婴儿进行比较。

youdao

Objective: to investigate the practical level of serum trace element in infant with breast feeding, and to compare them with that with non-breast feeding.

目的：探讨母乳喂养婴儿血清中微量元素的实际水平，并与非母乳喂养婴儿进行比较。

youdao