PubMed:32220650 / 1200-1202
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok255","span":{"begin":0,"end":2},"obj":"CD"}],"text":"19"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N4","span":{"begin":0,"end":2},"obj":"num"}],"text":"19"}