PMC:7210464 / 376-536 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T1","span":{"begin":72,"end":84},"obj":"http://purl.obolibrary.org/obo/OBI_0000968"}],"text":"in local communities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent quarantines, city lockdowns, and "}

    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T5","span":{"begin":22,"end":116},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"in local communities. Weather characteristics 2 weeks prior are used as instrumental variables for causal inference. Stringent quarantines, city lockdowns, and "}