title: The present status of levodopa and future approaches to therapy.
mesh_terms: D001058:Apomorphine / Q000627:therapeutic use; D003653:Decarboxylation; D004295:Dihydroxyphenylalanine / Q000378:metabolism / Q000627:therapeutic use*; D005500:Follow-Up Studies; D006801:Humans; D006834:Hydrazines / Q000627:therapeutic use; D010300:Parkinson Disease / Q000175:diagnosis / Q000188:drug therapy*; D010648:Phenylacetates / Q000134:cerebrospinal fluid; D012701:Serotonin / Q000378:metabolism
chemical_list: D006834:Hydrazines; D010648:Phenylacetates; D012701:Serotonin; D004295:Dihydroxyphenylalanine; D001058:Apomorphine