Allan, E R The relationship between negative symptoms of schizophrenia and extrapyramidal side effects with haloperidol and olanzapine. [electronic resource] - Psychopharmacology bulletin 1998 - 71-4 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 0048-5764 Subjects--Topical Terms: AdultAgedAntipsychotic Agents--adverse effectsBasal Ganglia Diseases--chemically inducedBenzodiazepinesHaloperidol--adverse effectsHumansMaleMiddle AgedOlanzapinePirenzepine--adverse effectsPsychiatric Status Rating ScalesSchizophrenia--drug therapySchizophrenic Psychology