PMC:7212965 / 3398-3477 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T28","span":{"begin":71,"end":72},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"st reported in the United States on January 20, 2020 and accounted for a total "}