PubMed:32118389 / 2401-2403
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T492","span":{"begin":0,"end":2},"obj":"CD"}],"text":"25"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok538","span":{"begin":0,"end":2},"obj":"CD"}],"text":"25"}