title: [Effect of L-dopa on P300 component--study in patients with juvenile parkinsonism having a wearing-off phenomenon].
mesh_terms: D000328:Adult; D003071:Cognition / Q000187:drug effects*; D005072:Evoked Potentials, Auditory / Q000187:drug effects; D005260:Female; D006801:Humans; D007980:Levodopa / Q000494:pharmacology*; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology*
chemical_list: D007980:Levodopa