PMC:7004396 / 141-236 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":69,"end":70},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ary 4, 2020\n\nOn December 31, 2019, Chinese health officials reported a cluster of cases of acut"}