Sitios del Web

Puerto Rico Center for Social Concerns: www.prcsc.org/
National Homeless Coalition: www.nationalhomeless.org/
National Institute of Drug Abuse: www.nida.nih.gov/NIDAEspanol.html
National Institute of Mental Health: www.nimh.nih.gov/
Mental Health Index: www.psychnet-uk.com/dsm_iv/dsm_iv_index.htm