神经刺激器定位下腰丛-坐骨神经联合阻滞在老年患者股骨头置换中的应用
신경자격기정위하요총-좌골신경연합조체재노년환자고골두치환중적응용
Application of lumbar plexus and sciatic nerve block in femur head surgery of aged patients by nerve stinulator
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