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Additional file 7 of Validity of observational evidence on putative risk and protective factors: appraisal of 3744 meta-analyses on 57 topics

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journal contribution
posted on 2021-07-06, 03:34 authored by Perrine Janiaud, Arnav Agarwal, Ioanna Tzoulaki, Evropi Theodoratou, Konstantinos K. Tsilidis, Evangelos Evangelou, John P. A. Ioannidis
Additional file 7: Table 2. Comparisons of observational studies and RCTs.


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