PMC:7212965 / 8877-9076 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T64","span":{"begin":121,"end":122},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"published studies that could be considered eligible for our review, with no restrictions on languages. In the setting of a pandemic with exponential increases in published and unpublished studies, ou"}