Objective To improve and enrich the ultrasonic image data of lesions about lumbar spinal canal.

目的丰富腰椎管区病变的超声诊断影像资料.

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Objecties . To elucidate the mechanisms of neurogenic intermittent claudication in lumbar spinal canal stenosis.

目的:阐明腰椎管狭窄症中神经原性间歇性跛行的机制.

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