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. 2021 May 3;505:108326. doi: 10.1016/j.carres.2021.108326

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Fig. 3 — Schematic representation of major essential factors influencing the antiviral activity of sulfated polysaccharides, Lambda-carrageenan [217,218], Fucoidan [219,220], Ulvanobiuronicacid A3s [221,222] (Section 4).