The Pacific Institute for Research and Evaluation
http://www.pire.org

The National Institutes of Health
http://www.nih.gov/

The Substance Abuse and Mental Health Services Administration
http://www.samhsa.gov

The National Institute on Alcohol Abuse and Alcoholism
http://www.niaaa.nih.gov/

The Center for Substance Abuse
http://www.csap.org