I need research sources for drug abuse and addiction. Thank you.

Question

Check these sources --

http://www.nida.nih.gov/

http://teens.drugabuse.gov/

(Broken Link Removed)

http://www.drugabusestatistics.samhsa.gov/

http://www.mayoclinic.com/health/drug-addiction/DS00183

http://www.addictions.org/drugad.htm

Answer 1

http://www.drugabuse.gov/publications/drugfacts/understanding-drug-abuse-addiction