PMC:7281378 / 928-1043 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T90165","span":{"begin":14,"end":15},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ns worldwide. A total of 281 articles were found eligible through screening of PubMed and Google Scholar databases "}