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LONG SLEEVE TOPS

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We investigate a non-autonomous discrete-time SIRS epidemic model with nonlinear incidence rate and distributed delays combined with a nonlinear recovery rate taken into account the impact of health care resources. Two threshold parameters $ \mathcal{R}_0. \mathcal{R}_\infty $ are obtained so that the disease dies out when $ \mathcal{R}_0 < 1 $; and the infective persists indefinit... https://www.minidsreamers.shop/product-category/long-sleeve-tops/
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