References
- Substance Abuse and Mental Health Services Administration. Results from the 1998 national household survey on drug abuse. Available at: http://www.health.org/govstudy/bkd332/highlights.htm. Accessed April 19, 2001
- Office of National Drug Control Policy. What America's users spend on illegal drugs, 1988–1998. Available at: http://www.whitehousedrugpolicy.gov/drugfact/retail/contents.html. Accessed April 19, 2001
- National Institutes of Health. Effective medical treatment of opiate addiction. NIH Consensus Statement 1997; 15(6):1–38. Available at: http://consensus.nih.gov. Accessed May 1, 2001