
超声引导下硬膜外穿刺在肥胖产妇无痛分娩中的应用效果
汪宁① 王纯辉① 王冰洁①
超声引导下硬膜外穿刺在肥胖产妇无痛分娩中的应用效果
Application Effect of Ultrasound-guided Epidural Puncture in Painless Delivery of Obese Parturients
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