Bird, V, Premkumar, P, Kendall, T, Whittington, C, Mitchell, J, Kuipers, E. Early intervention services, cognitive–behavioural
therapy and family intervention in early psychosis: systematic
review. Br J Psychiatry
2010; 197: 350–6.
Bertelsen, M, Jeppesen, P, Petersen, L, Thorup, A, Øhlenschlaeger, J, le Quach, P, et al. Five-year follow-up of a randomized
multicenter trial of intensive early intervention vs standard treatment
for patients with a first episode of psychotic illness: the OPUS
trial. Arch Gen Psychiatry
2008; 65: 762–71.
Gafoor, R, Nitsch, D, McCrone, P, Craig, TKJ, Garety, PA, Power, P, et al. Effect of early intervention on 5-year
outcome in non-affective psychosis. Br J
2010; 196: 372–6.