椎管内不同诱导方式下舒芬太尼复合罗哌卡因用于分娩镇痛的临床观察
李海冰, 刘志强, 陈秀斌, 等
Clinical efficacy of diverse intravertebral infusion with sufentanil and ropivacaine for labor analgesia
LI Hai-bing, LIU Zhi-qiang, CHEN Xiu-bin, et al
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2012, (4): 499
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DOI: 10.3969/j.issn.1674-8115.2012.04.027
