PMC:7210464 / 719-794
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T4","span":{"begin":38,"end":39},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"from the outbreak source region posed a higher risk to the destination regi"}