Jayne Cooper, Navneet Kapur, Roger Webb, Martin Lawlor, Else Guthrie, Kevin Mackway-Jones, Louis Appleby,
Suicide After Deliberate Self-Harm: A 4-Year Cohort Study American Journal of Psychiatry. ,vol. 162, pp. 297- 303 ,(2005) ,
10.1176/APPI.AJP.162.2.297