Article
Principles of study design in environmental epidemiology.
Environmental health perspectives - 1 Dec 1993
Morgenstern H, Thomas D
Abstract excerpt
This paper discusses the principles of study design and related methodologic issues in environmental epidemiology. Emphasis is given to studies aimed at evaluating causal hypotheses regarding exposures to suspected health hazards. Following background sections on the quantitative objectives and methods of population-based research, we present the major types of observational designs used in environmental...
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