PMC:7212965 / 13825-13923 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T90","span":{"begin":35,"end":36},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"16 The prevalence was expressed as a proportion and 95% confidence interval (CI). We used the fixe"}