title: [Parkinson's disease and neurotransmitters].
mesh_terms: D000368:Aged; D003866:Depressive Disorder / Q000139:chemically induced; D004298:Dopamine / Q000378:metabolism*; D006801:Humans; D007980:Levodopa / Q000009:adverse effects / Q000627:therapeutic use*; D010300:Parkinson Disease / Q000188:drug therapy / Q000378:metabolism*
chemical_list: D007980:Levodopa; D004298:Dopamine