al. (September 2006). "Emotion and psychosis: links between depression, self-esteem, negative schematic beliefs and delusions and hallucinations". Schizophr. Res. 86 (1–3): 181–8. doi:10.1016/j.schres.2006.06.018. PMID 16857346. {{cite journal}}: Explicit use of et al. in: |author= (help)CS1 maint: multiple names: authors list (link)↑ Beck, AT (2004). "A Cognitive Model of Schizophrenia". Journal of Cognitive Psychotherapy. 18 (3): 281–88. doi:10.1891/jcop.18.3.281.65649.↑ Bell V, Halligan PW, Ellis HD (2006). "Explaining delusions: a cognitive perspective". Trends in Cognitive Science. 10 (5): 219–26. doi:10.1016/j.tics.2006.03.004. PMID 16600666.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ Freeman D, Garety PA, Kuipers E, Fowler D, Bebbington PE, Dunn G (January 2007). "Acting on persecutory delusions: the importance of safety seeking". Behav Res Ther. 45 (1): 89–99. doi:10.1016/j.brat.2006.01.014. PMID 16530161.{{cite journal}}:  CS1 maint: multiple names