超声引导下相等低剂量不同浓度罗哌卡因用于臂丛神经阻滞的临床效果观察
丁庆民，张海清
Clinical observation on ultrasoundguided with equal small does ropivacaine of different concentrations in brachial plexus block
DING Qingmin, ZHANG Haiqing
河北医科大学学报
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2016, (12): 1437
-1440
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DOI: 10.3969/j.issn.10073205.2016.12.018
