PubMed:32176808 / 1546-1556
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T249","span":{"begin":0,"end":10},"obj":"NN"}],"text":"prevalence"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok273","span":{"begin":0,"end":10},"obj":"NN"}],"text":"prevalence"}