Características generales del diseño

16 Guía práctica de investigación en saludLurie P, Wolfe SM. Unethical trials of interventions to reduce perinatal transmission ofthe human immunodeficiency virus in developing countries. New England Journal ofMedicine, 1997, 337: 853–855.Resnik DB. The ethics of science: an introduction. Londres y Nueva York, Routledge,1999.Singer PA, Benatar SR. Beyond Helsinki: a vision for global health ethics (editorial).British Medical Journal, 2001, 322: 747–748.Operational guidelines for ethics committees that review biomedical research. Ginebra,Organización Mundial de la Salud, 2000 (TDR/PRD/Ethics/2000/1; puede consultarseen: http://www.who.int/tdr/publications/publications/pdf/ethics.pdf; se consultó el22/7/2004).World Medical Association Declaration of Helsinki. Ethical principles for medical researchinvolving human subjects. World Medical Association, 2000 (http://www.wma.net/e/policy/b3.htm; se consultó el 22/7/2004).