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Salud Publica Mex. 2004 Nov-Dec;46(6):559-84.

[Randomized clinical trials: variants, randomization methods, analysis, ethical issues and regulations].

[Article in Spanish]

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1
Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México. elazcano@correo.insp.mx
PMID:
15624861
[Indexed for MEDLINE]
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