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. 2020 Jul 24;59:102903. doi: 10.1016/j.ebiom.2020.102903

Fig. 2.

Fig. 2

Rates of SARS-CoV-2 detection by three methods of sampling. Forest plots of detection rates for oropharyngeal swabs (a), nasopharyngeal swabs (b), and sputum (c) and in a pooled analysis (d). The error bars in (d) are 95% confidence intervals (95% CIs). P-values were calculated by the Z-test.