PMC:7001240 / 3117-3236 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T19","span":{"begin":6,"end":12},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"}],"text":"y, we tested whether the risk changes considering air travel flows of the month of February 2019.\nTo estimate the risk "}