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. 2020 Jul 9;29(4):1079–1092. doi: 10.1007/s11191-020-00143-5

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© The Author(s) 2020

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Fig. 2 — 1918 influenza epidemic poster issued by the Board of Health in Alberta, Canada. Taken from https://upload.wikimedia.org/wikipedia/commons/thumb/6/61/SpanishFluPosterAlberta.png/946px-SpanishFluPosterAlberta.png