| Centre for drug research, University of Amsterdam |
| www.cedro-uva.org |
| European Coalition for Just and Effective Drug Policies |
| www.encod.org |
| European Monitoring Centre for Drugs and Drug Addiction |
| www.emcdda.eu.int |
| Exchange on drug demand reduction action |
| www.eddra.emcdda.eu.int |
| National Institute on drug abuse |
| www.nida.nih.gov |
| Office of National Drug Control Policy - USA |
| www.whitehousedrugpolicy.gov |
| UNODCCP |
| United Nations Office for Drug Control and Crime Prevention |
| www.odccp.org |
NUMERO VERDE: 800-144.786
