中国计划生育学杂志
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经会阴三维超声定量评估初产妇肛提肌裂孔形态参数的价值分析
四川省富顺县人民医院(643200)
Value analysis of the morphological parameters of anal levator hiatus of primiparass quantitatively evaluated by transperineal three-dimensional ultrasound
Ultrasound Department Fushun County People's Hospital,Sichuan Province, 643200