[1]
A. L. C. Martimbianco, R. L. Pacheco, C. de O. C. Latorraca, R. E. S. Ferreira, and R. Riera, “Systematic reviews on interventions for COVID-19 have rarely graded the certainty of the evidence”, Sao Paulo Med J, vol. 139, no. 5, pp. 511–513, Sep. 2021.