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. 2021 Jan 5;23(1):14. doi: 10.1208/s12248-020-00532-2

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© The Author(s) 2021

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Fig. 8 — Assay techniques and tests for COVID-19 diagnosis. a, b The enzyme-linked immunosorbent assays (ELISA) detecting COVID-19 antibodies (a) or antigens (b). Redrawn with permission from (155). c Serologic diagnostic tests for COVID-19 antibodies