PMC:7281378 / 9275-9458 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T23575","span":{"begin":16,"end":17},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ing articles in a language other than English were omitted from the analysis.\nThe articles were first screened through their abstracts to find out their relevance for inclusion, and, "}