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. 2022 Aug 26;15:6821–6836. doi: 10.2147/IJGM.S376316

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© 2022 El-Shitany et al.

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Comparison between the percentage of individuals with and without adverse reactions after their 2^nd and 3^rd COVID-19 Pfizer-BioNTech vaccine doses according to their age categories. p value derived from Fisher’s exact test.