D (August 2013). "Cannabis and psychosis: have we found the missing links?". Asian Journal of Psychiatry (Review). 6 (4): 281–7. doi:10.1016/j.ajp.2013.03.012. PMID 23810133. Cannabis acts as a component cause of psychosis, that is, it increases the risk of psychosis in people with certain genetic or environmental vulnerabilities, though by itself, it is neither a sufficient nor a necessary cause of psychosis.↑ Leweke FM, Koethe D (June 2008). "Cannabis and psychiatric disorders: it is not only addiction". Addict Biol. 13 (2): 264–75. doi:10.1111/j.1369-1600.2008.00106.x. PMID 18482435.↑ Yolken R. (Jun 2004). "Viruses and schizophrenia: a focus on herpes simplex virus". Herpes. 11 (Suppl 2): 83A–88A. PMID 15319094.↑ Broome MR, Woolley JB, Tabraham P; et al. (November 2005). "What causes the onset of psychosis?". Schizophr. Res. 79 (1): 23–34. doi:10.1016/j.schres.2005.02.007. PMID 16198238. {{cite journal}}: Explicit use of et al. in: |author= (help)CS1 maint: multiple names: aut