title: [L-dopa treatment and vitamin B 6 --clinical and chemical studies].
mesh_terms: D000368:Aged; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy*; D011736:Pyridoxine / Q000008:administration & dosage* / Q000627:therapeutic use
chemical_list: D004295:Dihydroxyphenylalanine; D011736:Pyridoxine