Medical research shapes healthcare every day, but not all studies are created equal. Knowing the differences can help you feel more confident reading health information online and understanding what ...
Case-Control Study: A case-control study is a retrospective observational research design in which participants are selected based on the presence (cases) or absence (controls) of a specific outcome, ...
Whereas cardiovascular disease-related mortality has declined in most developed countries, its known prevalence is increasing worldwide, although few data on the causes of heart disease in the ...
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