Occurrence of transient positive sharp wave like activity in the paraspinal muscles following lumbar puncture.
D000328:Adult; D004576:Electromyography / Q000379:methods*; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D013129:Spinal Puncture