PMC:7210464 / 660-769
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T4","span":{"begin":97,"end":98},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"as contained by the middle of February. Population outflow from the outbreak source region posed a higher ris"}