title: Urinary excretion of dopamine and homovanillic acid during L-dopa treatment of Parkinson's disease.
mesh_terms: D000328:Adult; D000368:Aged; D003404:Creatinine / Q000652:urine; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use*; D004298:Dopamine / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy / Q000652:urine*; D010648:Phenylacetates / Q000652:urine*
chemical_list: D010648:Phenylacetates; D004295:Dihydroxyphenylalanine; D003404:Creatinine; D004298:Dopamine