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Last Edited: 10/5/2009

Epidemiology

The study of the distribution and determinants of disease or events in specific populations, and the application of this study to disease control. Epidemiological studies are often classified either as "descriptive", where diseases are characterized according to where, when and to whom they occur, or "analytic," which involving testing hypotheses about exposure-disease relationships and quantifying the levels of risk such exposures may entail.

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