Additional file 4 of Validity of observational evidence on putative risk and protective factors: appraisal of 3744 meta-analyses on 57 topics
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by
Perrine Janiaud, Arnav Agarwal, Ioanna Tzoulaki, Evropi Theodoratou, Konstantinos K. Tsilidis, Evangelos Evangelou, John Ioannidis