1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 4th ed., Text Revision London: American Psychiatric Publishing; 2000.
2. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 5th ed. Arlington: American Psychiatric Association; 2013.
3. Center for Behavioral Health Statistics and Quality. Behavioral health trends in the United States: results from the 2014 National Survey on Drug Use and Health; 2015.
4. Substance Abuse and Mental Health Services Administration. Results from the 2013 National Survey on drug use and health: summary of national findings, NSDUH series H-48, HHS Publication No. (SMA) 14–4863; 2014.
5. Substance Abuse and Mental Health Administration, Center for Behavioral Health Statistics and Quality. Drug Abuse Warning Network. 2008: National estimates of drug-related emergency department visits. HHS publication no. SMA 11–4618; 2011.