中国计划生育学杂志
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凶险性前置胎盘合并胎盘植入的产前超声诊断及凶险预测研究
甘肃省妇幼保健院
Development of prenatal ultrasound diagnosis and risk prediction for pernicious previa with placental implantation
Gansu Provincial Maternity and Child Health Care Hospital, Lanzhou, Gansu Province, 730050