中国计划生育学杂志
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经阴道超声宫颈弹性成像参数联合宫颈前角预测高危孕妇早产价值
河南大学第一附属医院(开封,475000)
Predictive value of the parameters of elastography of cervix by transvaginal ultrasound combined with anterior uterocervical angle for the preterm delivery of high-risk pregnant women
The First Affiliated Hospital of Henan University, Kaifeng, Henan Province, 475000