PubMed:32118640 / 2293-2295
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T381","span":{"begin":0,"end":2},"obj":"CD"}],"text":"24"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok478","span":{"begin":0,"end":2},"obj":"CD"}],"text":"24"}