title: An extended trial of oxypertine in five selected cases of chronic schizophrenia.
mesh_terms: D002908:Chronic Disease / Q000188:drug therapy; D002986:Clinical Trials as Topic; D006801:Humans; D010919:Placebos; D012559:Schizophrenia / Q000188:drug therapy*; D014149:Tranquilizing Agents / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D014149:Tranquilizing Agents