Method 42 cases of pregnant woman volunteers were randomizedly given epidural anesthesia during labor, and 65 cases of pregnant women without any application of analgesia served as the control group.
方法随机选择42例自愿要求无痛分娩的产妇，施行持续硬膜外阻滞，同期同条件的65例产妇作对照。
Method 42 cases of pregnant woman volunteers were randomizedly given epidural anesthesia during labor, and 65 cases of pregnant women without any application of analgesia served as the control group.
方法随机选择42例自愿要求无痛分娩的产妇，施行持续硬膜外阻滞，同期同条件的65例产妇作对照。
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