title: Biochemical substrates of mental disturbances in Parkinson's disease.
mesh_terms: D000109:Acetylcholine / Q000378:metabolism*; D001921:Brain / Q000378:metabolism*; D002540:Cerebral Cortex / Q000378:metabolism; D003704:Dementia / Q000378:metabolism; D003866:Depressive Disorder / Q000378:metabolism; D004298:Dopamine / Q000378:metabolism*; D006801:Humans; D008032:Limbic System / Q000378:metabolism; D001523:Mental Disorders / Q000378:metabolism*; D008636:Mesencephalon / Q000378:metabolism; D010300:Parkinson Disease / Q000150:complications*
chemical_list: D000109:Acetylcholine; D004298:Dopamine