Defining “good” and “poor” outcomes in patients with schizophrenia or schizoaffective disorder: A multidimensional data-driven approach - Lipkovich, I A; Deberdt, W; Csernansky, J G; Buckley, P; Peuskens, J; Kollack-Walker, S; Rotelli, M; Houston, J P (Psychiatry Res, 2009)