title: Pattern-reversal visual evoked potentials in late-onset progressive multiple sclerosis.
mesh_terms: D000328:Adult; D005071:Evoked Potentials; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis / Q000503:physiopathology*; D009900:Optic Nerve / Q000503:physiopathology*; D010364:Pattern Recognition, Visual