title: [Therapeutic effects of L-dopa and trihexyphenidyl in Parkinson's disease--an examination by a double blind method].
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D002986:Clinical Trials as Topic; 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*; D014282:Trihexyphenidyl / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D004295:Dihydroxyphenylalanine; D014282:Trihexyphenidyl