PMC:7039910 / 3239-3330 JSONTXT

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    LitCovid-PD-GO-BP

    {"project":"LitCovid-PD-GO-BP","denotations":[{"id":"T2","span":{"begin":18,"end":30},"obj":"http://purl.obolibrary.org/obo/GO_0000003"}],"text":" called the basic reproduction number, R09, and the actual average number of secondary case"}