PMC:7060038 / 3057-3220 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T13","span":{"begin":67,"end":73},"obj":"http://purl.obolibrary.org/obo/CLO_0001658"}],"text":"ess; imperfect performance of screening equipment or personnel; or active evasion of screening by travellers. Previously we estimated the effectiveness of travelle"}