PMC:7060038 / 17557-17635
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T59","span":{"begin":54,"end":55},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"vellers aware of exposure risk 20% 5–40% We assume a low percentage, as no "}