PMC:7441788 / 20592-20639 JSONTXT

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    LitCovid-sample-sentences

    {"project":"LitCovid-sample-sentences","denotations":[{"id":"T155","span":{"begin":0,"end":47},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Possible confounding factors were not adjusted."}

    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T155","span":{"begin":0,"end":47},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Possible confounding factors were not adjusted."}