title: Letter: Speech disorder, partial syndrome of Gilles de la Tourette, and drug therapy.
mesh_terms: D002986:Clinical Trials as Topic; D003975:Diazepam / Q000627:therapeutic use*; D005475:Flupenthixol / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D010919:Placebos; D013064:Speech Disorders / Q000188:drug therapy*; D013892:Thioxanthenes / Q000627:therapeutic use*; D005879:Tourette Syndrome / Q000188:drug therapy*
chemical_list: D010919:Placebos; D013892:Thioxanthenes; D005475:Flupenthixol; D003975:Diazepam