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Olanzapine and risperidone may improve neurocognition more than haloperidol in people with schizophrenia who continue treatment for 52 weeks

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  • For correspondence: Richard S E Keefe, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC 27710, USA; richard.keefe{at}

  • Source of funding: Lily Research Laboratories, USA.

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