对829名首次就诊于儿童保健门诊的1~12个月婴儿的保健资料进行分析。

To study the data of 829 infants aged 1-12 months first coming to the child health care.

youdao

对829名首次就诊于儿童保健门诊的1~12个月婴儿的保健资料进行分析。

To study the data of 829 infants aged 1-12 months first coming to the child health care.

youdao