Which of the following are true about environmental epidemiologic studies?
a) cohort st...
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Geography, 10.10.2019 17:10 goonnation9311
Which of the following are true about environmental epidemiologic studies?
a) cohort studies define subjects by exposure, which all participants have
b) case-control studies define subjects by health outcome, which only some participants have
c) cross-sectional studies determine the distribution of either a health outcome an exposure or both
d) case series studies define subjects by health outcome, which all participants have
d) all of the above
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