1. Preventing suicide: a global imperative,2014
2. Suicide risk assessment and intervention in people with mental illness;Bolton;BMJ,2015
3. The Academy of Fabulous Stuff. Good practice guide: focus on improving patient flow. Academy of Fabulous Stuff Community Interest Company Ltd. Published July 2017. Accessed March 19, 2020. https://fabnhsstuff.net/fab-stuff/dddd
4. Barriers to nursing care in emergency wards;Mahmoudi;Iran J Nurs Midwif Res,2013
5. Jacobs D, Baldessarini R, Conwell Y, Fawcett J, Horton L, Meltzer H, et al. Practice guidelines for the assessment and treatment of patients with suicidal behaviors. American Psychiatric Association; 2003. Accessed April 11, 2020. https://psychiatryonline.org/pb/assets/raw/sitewide/practice_guidelines/suicide.pdf