给足月胎儿放自己妈妈读诗的录音和陌生阿姨读同首诗的录音。
fetuses at term were played recordings of their mothers reading a poem, as well as recordings of a female stranger reading the same poem. The
疾病较轻且离足月尚早的孕妇可期待胎儿生长和成熟。
Women with mild disease remote from term can be managed expectantly to enable fetal growth and maturation.
此外，分娩技术提高使得不足月的胎儿也能安全出生以及孕妇工作压力大也是导致出生缺陷的原因。
Safe births of premature babies with improved delivery technologies and high job stress of pregnant women are also causes of birth defects.
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