title: [Effects and side effects to levodopa in parkinsonism- results of a collaborative study. (5) Combined therapy with a peripheral decarboxylase inhibitor].
mesh_terms: D000328:Adult; D000368:Aged; D002230:Carbidopa / Q000008:administration & dosage* / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D006801:Humans; D006834:Hydrazines / Q000008:administration & dosage*; D007980:Levodopa / Q000008:administration & dosage* / Q000627:therapeutic use; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy*
chemical_list: D006834:Hydrazines; D007980:Levodopa; D002230:Carbidopa