PMC:7405836 / 3026-3161 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T52163","span":{"begin":10,"end":13},"obj":"http://purl.obolibrary.org/obo/CLO_0051582"},{"id":"T73422","span":{"begin":20,"end":21},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"9, and it has posed a global health threat, causing an ongoing pandemic in many countries and territories (1).\nHealth workers worldwide"}