Consistency of psychopathological dimensions in schizophrenia as determined by the BPRS: A multicenter factor analytic study : R. Goldman, R. Tandon, J. Woodard, W. Faustman, F. Hohagen, W.F. Gattaz, M.S. Keshavan, S. Mukherjee University of Michigan, Ann Arbor, MI 48109-0120, Stanford University, Palo Alto, CA, Central Institute of Mental Health, Mannheim, FRG, University of Pittsburgh, Pittsburgh, PA, New York State Psychiatric Research Institute, New York, NY