PubMed:32052373 / 1531-1537
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T215","span":{"begin":0,"end":6},"obj":"NN"}],"text":"number"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok239","span":{"begin":0,"end":6},"obj":"NN"}],"text":"number"}