PMC:7210464 / 3324-3463 JSONTXT

{"project":"LitCovid-PD-UBERON","denotations":[{"id":"T1","span":{"begin":110,"end":115},"obj":"Body_part"}],"attributes":[{"id":"A1","pred":"uberon_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/UBERON_0002542"}],"text":"e estimates before and after February 2, we examine whether the comprehensive set of policies at the national scale delays the spread of CO"}