PubMed:32227494 / 345-349
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok67","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2500"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N2","span":{"begin":0,"end":4},"obj":"num"}],"text":"2500"}