1. Pan American Health Organization. Patients under antiretroviral treatment in Latin America and the Caribbean. Available at: http://www.paho.org/English/AD/FCH/AI/acceso-arv-05.pdf (accessed October 2006).
2. UNAIDS/World Health Organization. Colombia: Epidemiological fact sheet on HIV/AIDS and sexually transmitted diseases 2006. Available at: http://www.who.int/GlobalAtlas/predefinedReports/EFS2006/EFS_PDFs/EFS2006_CO.pdf (accessed October 2006).
3. Departamento Administrativo Nacional de Estadística (DANE). Defunciones 2005. Available at: http://www.dane.gov.co/files/investigaciones/poblacion/defunciones/defun_2005/CUADRO5.xls (accessed October 2006).
4. Anonymous. Claims for HIV/AIDS treatment in Colombia jump more than 400 percent. AIDS Policy Law 2003;18:8.
5. World Health Organization. Prequalification programme. Available at: http://mednet3.who.int/prequal/ (accessed February 2007).