丙泊酚联合小剂量芬太尼用于老年患者无痛胃镜麻醉的临床观察
병박분연합소제량분태니용우노년환자무통위경마취적림상관찰
Application observation on superficial anesthesia,propofol combined with low dose of fentanyl to painless gastroscopic anaesthesia in patients aged over 60
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