PubMed:32250385 / 1543-1545
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok270","span":{"begin":0,"end":2},"obj":"CD"}],"text":"63"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":2},"obj":"num"}],"text":"63"}