elienefordp6cll0
elienefordp6cll0
29-03-2018
Mathematics
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What is a case-control study?
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tysonjeanette8p52jwr
tysonjeanette8p52jwr
29-03-2018
A case-control study is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.
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