Fig. 1From: Magnetic resonance imaging and dynamic X-ray’s correlations with dynamic electrophysiological findings in cervical spondylotic myelopathy: a retrospective cohort studyDSSEP test illustration: Left: Cervical spine in neutral, 20° extension and 35° flexion positions. Right: DSSEP results of the left median nerve of this CSM patient. The latencies of N9, N13 and N20, amplitudes of N13 and N20 are shown in the figureBack to article page