罗哌卡因单次硬膜外腔注射用于妇产科手术后镇痛的临床观察
라고잡인단차경막외강주사용우부산과수술후진통적림상관찰
Clinical effect of using single epidural injection of Ropivacaine Mesylate to ease the pain after gynaecological surgeries
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