title: A year's comparison of treatment of patients with parkinson's disease with levodopa combined with carbidopa versus treatment with levodopa alone.
mesh_terms: D065105:Aromatic Amino Acid Decarboxylase Inhibitors; D001806:Blood Urea Nitrogen; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage* / Q000009:adverse effects / Q000097:blood / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D006801:Humans; D006834:Hydrazines / Q000008:administration & dosage*; D009325:Nausea / Q000139:chemically induced; D010300:Parkinson Disease / Q000097:blood / Q000188:drug therapy*; D010919:Placebos; D013997:Time Factors; D014839:Vomiting / Q000139:chemically induced
chemical_list: D065105:Aromatic Amino Acid Decarboxylase Inhibitors; D006834:Hydrazines; D010919:Placebos; D004295:Dihydroxyphenylalanine