PMC:7258756 / 79-103 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":13,"end":23},"obj":"http://purl.obolibrary.org/obo/BFO_0000030"}],"text":"Background \u0026 objectives:"}

    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":0,"end":24},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Background \u0026 objectives:"}