PMC:7253235 / 252-397 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":47,"end":52},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"}],"text":"wenty-first century. Originating in Wuhan, the virus rapidly spread and impacted subsets of populations with initial unclear risk factors contrib"}