PMC:7499623 / 279-366 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T4","span":{"begin":77,"end":78},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"surgical services. The European Society of Thoracic Surgeons (ESTS) sent out a survey t"}