title: Letter: Mental changes in Parkinsonism.
mesh_terms: D001284:Atrophy; D001921:Brain / Q000503:physiopathology; D003704:Dementia / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications* / Q000503:physiopathology; D012018:Reflex; D009435:Synaptic Transmission