中国计划生育学杂志
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绒毛膜下血肿与早产风险关系的meta分析
河北省石家庄市第四医院(河北医科大学附属妇产医院) (050000)
The association between the subchorionic hematoma of the pregnant women and their increased risk of preterm birth: a meta-analysis
The Obstetrics and Gynecology Hospital Affiliated to Hebei Medical University, Shijiazhuang, Hebei Province, 050000