Clinical correlates of early onset antipsychotic treatment resistance by Fonseca de Freitas, D, Agbedjro, D, Kadra-Scalzo, G, Francis, E, Ridler, I, Pritchard, M, Shetty, H, Segev, A, Casetta, C, Smart, S, Morris, A, Downs, J, Christensen, S, Bak, N, Kinon, B, Stahl, D, Hayes, R, MacCabe, J