@FreedomSnake1
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Ale maseczki w trakcie covidu to był dobry pomysł : Talic S, Shah S, Wild H, Gasevic D, Maharaj A, Ademi Z, Li X, Xu W, Mesa-Eguiagaray I, Rostron J, Theodoratou E, Zhang X, Motee A, Liew D, Ilic D (November 2021). "Effectiveness of public health measures in reducing the…