| Health / Medical Topics |
Level of Evidence III
Retrospective studies. (NCI Dictionary)
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Prospective, nonrandomized, controlled trials; prospective cohort studies; prospective case series; and cross-sectional studies.
Prospective, randomized, controlled trials and meta-analyses of prospective, randomized, controlled trials.
Randomized, controlled clinical trial with total mortality as an endpoint.
A formal ranking system of the strength of evidence linked to a reported result.
The level of awareness of an organism.
A position on a scale measuring intensity, quality, or amount.
