PubMed:32118640 / 1649-1651
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T252","span":{"begin":0,"end":2},"obj":"CD"}],"text":"70"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok284","span":{"begin":0,"end":2},"obj":"CD"}],"text":"70"}