Duration of untreated psychosis among first-contact psychosis in São Paulo, Brazil - Oliveira, A.; Menezes, P. R.; Scazufca, M.; Coutinho, L. M. S.; Busatto, Geraldo; Casagrande, K.; McGuire, P.; Murray, R. M. (Biennal Winter Workshop of Schizophrenia Research, 2006)