PubMed:32118389 / 2440-2442
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T500","span":{"begin":0,"end":2},"obj":"CD"}],"text":"24"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok549","span":{"begin":0,"end":2},"obj":"CD"}],"text":"24"}