低剂量右美托咪定复合酒石酸布托啡诺用于乳腺癌根治术后静脉镇痛的临床观察
저제량우미탁미정복합주석산포탁배낙용우유선암근치술후정맥진통적림상관찰
Clinical observation of low-dose dexmedetomidine combined with butorphanol tartrate for patient controlled intravenous analgesia after radical mastectomy