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So a comparative study including the analgesia efficacy, birth time, mode, intravenous drip syntocinon and the condition of the newborn could be made. 結(jié)果笑氣組與阻滯組對於分娩鎮(zhèn)痛傚果相似,阻滯組在一定程度上對産程、宮縮有影響。