Effects of Intrathecal Morphine Injection on the Newborn Performed Hysterotokotomy during Lumbar Anesthesia by Ropivacaine and the Evaluation for Postoperative Analgesia

 
  • 鞘内吗啡对罗比卡因腰麻时剖宫产新生儿的影响及术后镇痛的评价
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