National Institute of Mental Health (NIMH)
http://www.nimh.nih.gov/

National Institute on Drug Abuse (NIDA)
http://www.nida.nih.gov/

National Center on Minority Health and Health Disparities (NCMHD)
http://ncmhd.nih.gov/

Agency for Health Care Research and Quality (AHRQ)
http://www.ahrq.gov/

Substance Abuse and Mental Health Services Administration (SAMHSA)
http://www.samhsa.gov/index.aspx

National Library of Medicine
http://www.nlm.nih.gov/

National Center for Health Statistics
http://www.cdc.gov/nchs/