PMC:7200337 / 1647-1750 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T50209","span":{"begin":22,"end":23},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T39945","span":{"begin":53,"end":65},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"},{"id":"T15961","span":{"begin":81,"end":83},"obj":"http://purl.obolibrary.org/obo/CLO_0053733"}],"text":"sis that was declared a pandemic by the World Health Organization (WHO) on March 11, 2020. The origin o"}