PMC:7402624 / 7021-7145 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T73","span":{"begin":6,"end":8},"obj":"http://purl.obolibrary.org/obo/CLO_0053794"}],"text":"ge of 41 and 29 respectively), though the age distributions for all three cohorts overlapped (Fig. 1A and fig. S1A). For COV"}