
超声显像辅助椎管内麻醉在老年下肢手术患者中的应用效果
张萍① 杨健①
超声显像辅助椎管内麻醉在老年下肢手术患者中的应用效果
Application Effect of Ultrasound Imaging Assisted Intraspinal Anesthesia in Elderly Patients Undergoing Lower Extremity Surgery
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