1. Agency for Healthcare Research and Quality. (n.d.). Ways to approach the quality improvement process. https://www.ahrq.gov/cahps/quality-improvement/improvement-guide/4-approach-qi-process/index.html.
2. American Association for Suicide Prevention. (2019). Washington state suicide fact sheet. https://afsp.org/about-suicide/state-fact-sheets/#Washington.
3. American Foundation for Suicide Prevention. (2017). State laws: Training for health professionals in suicide assessment, treatment, and management. http://afsp.org/wp-content/uploads/2016/04/Health-Professional-Training-Issue-Brief-9-7-17.pdf.
4. Changes in rates of suicide by car exhaust asphyxiation in England and Wales
5. Reducing a Suicidal Person’s Access to Lethal Means of Suicide