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Fig. 3 | European Journal of Medical Research

Fig. 3

From: Zinc supplementation and COVID-19 mortality: a meta-analysis

Fig. 3

Risk of bias graph and summary: review authorsā€™ judgements about each risk of bias item presented as percentages across eligible studies. Studies that have done by Yao et al. [16] and Carlucci et al. [13] haveĀ categorized as good studies about the risk of bias based on the modified Newcastle-Ottawa Scale by the authorsā€™Ā judgement

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