Aripiprazole, an antipsychotic with a novel mechanism of action, and risperidone vs placebo in patients with schizophrenia and schizoaffective disorder. - Potkin,S.G.; Saha,A.R.; Kujawa,M.J.; Carson,W.H.; Ali,M.; Stock,E.; Stringfellow,J.; Ingenito,G.; Marder,S.R. (Arch Gen Psych, 2003)