Friedman, Joseph I A double blind placebo controlled trial of donepezil adjunctive treatment to risperidone for the cognitive impairment of schizophrenia. [electronic resource] - Biological psychiatry Mar 2002 - 349-57 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0006-3223 Standard No.: 10.1016/s0006-3223(01)01342-7 doi Subjects--Topical Terms: AdultAgedAntipsychotic Agents--administration & dosageCognition Disorders--diagnosisDonepezilDose-Response Relationship, DrugDouble-Blind MethodDrug Therapy, CombinationFemaleHumansIndans--administration & dosageMaleMiddle AgedNeuropsychological TestsPiperidines--administration & dosageRisperidone--administration & dosageSchizophrenia--diagnosisSchizophrenic Psychology