1. International Society for the Study of Self-Injury (2007) Definition of non-suicidal self-injury. http://www.itriples.org/isss-aboutself-i.html . Accessed 28 May 2014
2. Muehlenkamp JJ, Claes L, Havertape L, Plener PL (2012) International prevalence of non-suicidal self-injury and deliberate self-harm. Child Adolesc Psychiatry Ment Health. doi: 10.1186/1753-2000-6-10
3. Swannell SV, Martin GE, Page A, Hasking P, St John MJ (2014) Prevalence of nonsuicidal self-injury in nonclinical samples: systematic review, meta-analysis and meta-regression. Suicide Life Threat Behav 44:273–303
4. DiClemente RJ, Ponton LE, Hartley D (1991) Prevalence and correlates of cutting behavior: risk for HIV transmission. J Am Acad Child Adolesc Psychiatry 30:735–739
5. American Psychiatric Association (1994) Diagnostic and statistical manual of mental disorders, 4th edn. American Psychiatric Association, Washington DC