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Glossary of Methodologic Terms - Elsevier

WebLevel 3.a – Systematic review of comparable cohort studies Level 3.b – Systematic review of comparable cohort and other lower study designs Level 3.c – Cohort study with control group Level 3.d – Case – controlled study Level 3.e – Observational study without a control group Level4–Observational–DescriptiveStudies Level4.a WebA clinical database may be a Registry (a limited amount of data for every patient undergoing heart surgery) or Academic (an organized and extensive dataset of an inception cohort of carefully selected subset of patients). A registry and an academic database have different purposes and cost. galaxy watch silver 40mm

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