中国计划生育学杂志
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阴道彩色多普勒超声检测子宫动脉血流与早期先兆流产结局的关系
宁波市北仑区妇幼保健院
The relationship between uterine arterial blood flows by vaginal color doppler ultrasonography and the prognosis of pregnant women at first stage with early threatened abortion
Maternal and Children Health Care Hospital of BeiLun District, Ningbo, Zhejiang Province, 315800