Kumar, Pattath Narayanan Suresh Cognitive effects with rivastigmine augmentation of risperidone: A 12-month, randomized, double-blind, placebo-controlled study in schizophrenia. [electronic resource] - Indian journal of psychiatry - 219-224 p. digital Publication Type: Journal Article ISSN: 0019-5545 Standard No.: 10.4103/psychiatry.IndianJPsychiatry_133_16 doi