Referencias Porta M. A dictionary of epidemiology. 5th edition. Oxford, New York: Oxford University Press, 2008.
{"Image DocumentName": "ReferenciasPorta M. A dictionary of epidemiology. 5th edition. Oxford, New York: Oxford University Press, 2008.", "Image ImageDescription": "Rothman J, Greenland S. Modern epidemiology. Second edition. Lippincott - Raven Publishers, Bhopal R. Study design. University of Edinburgh. NLM. An introduction to Clinical trials. U.S. National Library of Medicine, Songer T. Study designs in epidemiological research. In: South Asian Cardiovascular Research Methodology Workshop. Aga-Khan and Pittsburgh universities.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}