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Objective
There is a lack of evidence on the usage of the quality assessment tool‐the Risk Of Bias In Nonrandomized Studies‐of Interventions (ROBINS‐I). This article aimed to measure the reliability, criterion validity, and feasibility of the ROBINS‐I and the Newcastle‐Ottawa Scale (NOS).
Methods
A sample of systematic reviews or meta‐analyses of observational studies were selected from Medline...