title: A double-blind crossover study of the L-dopa treatment of torsion dystonia in identical twins.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use*; D004200:Diseases in Twins / Q000188:drug therapy*; D004422:Dystonia Musculorum Deformans / Q000175:diagnosis / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008124:Locomotion; D010919:Placebos
chemical_list: D010919:Placebos; D004295:Dihydroxyphenylalanine