[Ethical problems in clinical research].
Cárdenas
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División de Investigación Clínica, Instituto Nacional de Cardiología Ignacio Chávez, México, D.F.
D002985:Clinical Protocols / Q000592:standards*; D004992:Ethics, Medical / Q000266:history*; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049691:History, Medieval; D006805:Human Experimentation / Q000266:history*; D006801:Humans
Problemas éticos de la investigación clínica.