PubMed:32220650 / 938-940 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok189","span":{"begin":0,"end":2},"obj":"CD"}],"text":"19"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":2},"obj":"num"}],"text":"19"}