title: [The additive effect of amantadine hydrochloride (Symmetrel) on parkinsonian patients receiving levodopa treatment (author's transl)].
mesh_terms: D000328:Adult; D000547:Amantadine / Q000008:administration & dosage* / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy*
chemical_list: D007980:Levodopa; D000547:Amantadine