1. Trends in opioid analgesic abuse and mortality in the United States;Dart;N Engl J Med,2015
2. Centers for Disease Control and Prevention. Injury prevention and control: opioid overdose, 2016. Available at: http://www.cdc.gov/drugoverdose/index.html. Accessed April 16, 2016.
3. Muhuri PK, Gfroerer JC, Davies MC. Associations of nonmedical pain reliever use and initiation of heroin use in the United States. Center for Behavioral Health Statistics and Quality Data Review, 2013. Available at: http://www.samhsa.gov/data/sites/default/files/DR006/DR006/nonmedical-pain-reliever-use-2013.pdf. Accessed April 17, 2016.
4. The changing face of heroin use in the United States. A retrospective analysis of the past 50 years;Cicero;JAMA Psychiatry,2014
5. Heroin use and heroin use risk behaviors among nonmedical users of prescription opioid pain relievers—United States, 2002–2004 and 2008–2010;Jones;Drug and Alcohol Depend,2013