PMC:7212965 / 657-747 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T8","span":{"begin":25,"end":26},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"9.\n\nMethods\nWe performed a systematic literature search to identify published and unpublis"}

    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T6","span":{"begin":4,"end":11},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"9.\n\nMethods\nWe performed a systematic literature search to identify published and unpublis"}