PMC:7068164 / 149-215 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":37,"end":39},"obj":"http://purl.obolibrary.org/obo/CLO_0050509"}],"text":"OVID-19 surveillance was implemented 27 January 2020. We detail th"}