静脉氟比洛芬酯联合吗啡单次硬膜外注射用于老年患者术后镇痛的效果
정맥불비락분지연합마배단차경막외주사용우노년환자술후진통적효과
Intravenous flurbiprofen axetil combined with epidural load dose morphine for postoperative analgesia in elderly patients
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