title: MRI study on Parkinson's disease in relation to the severity of the disease.
mesh_terms: D000328:Adult; D000368:Aged; D001284:Atrophy; D001479:Basal Ganglia / Q000473:pathology; D001921:Brain / Q000473:pathology*; D002540:Cerebral Cortex / Q000473:pathology; D003704:Dementia / Q000473:pathology; D005260:Female; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000473:pathology*