title: Recording technically satisfactory somatosensory evoked potentials during spinal cord operation.
mesh_terms: D005073:Evoked Potentials, Somatosensory; D006801:Humans; D007432:Intraoperative Period; D008991:Monitoring, Physiologic / Q000379:methods; D013116:Spinal Cord / Q000502:physiology / Q000601:surgery*