瑞芬太尼静脉PCIA与腰麻-硬膜外联合麻醉后PCIA用于分娩镇痛的比较
서분태니정맥PCIA여요마-경막외연합마취후PCIA용우분면진통적비교
Comparison of PCIA with remifentanil and combined spinal-epidural analgesia and PCEA with roplvacaine and fentanyl for labour an algesia
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