PMC:7068984 / 302-413 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T3","span":{"begin":70,"end":82},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"}],"text":"na and received worldwide attention. On 30 January 2020, World Health Organization (WHO) officially declared th"}