PMC:7441788 / 22153-22294 JSONTXT

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    LitCovid-sample-sentences

    {"project":"LitCovid-sample-sentences","denotations":[{"id":"T164","span":{"begin":0,"end":141},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Retrospective study design; There may be missing information; Mortality was limited to in-hospital death; There may be potential confounders."}

    LitCovid-sample-PD-GO-BP-0

    {"project":"LitCovid-sample-PD-GO-BP-0","denotations":[{"id":"T66","span":{"begin":99,"end":104},"obj":"http://purl.obolibrary.org/obo/GO_0016265"}],"text":"Retrospective study design; There may be missing information; Mortality was limited to in-hospital death; There may be potential confounders."}

    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T164","span":{"begin":0,"end":141},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Retrospective study design; There may be missing information; Mortality was limited to in-hospital death; There may be potential confounders."}