PMC:6988272 / 7314-7408 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T50","span":{"begin":35,"end":36},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"e thought to have occurred through a common exposure since they all lived together and worked "}