PMC:7510993 / 12683-12875 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T47","span":{"begin":27,"end":32},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"},{"id":"T48","span":{"begin":94,"end":95},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"or the number of conducted tests (i.e., sampling efforts) in individual countries/regions, as a covariate in the model. Note that this analysis was applied to the data from 128/828 countries/r"}