PubMed:32062957 / 1947-1949 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok466","span":{"begin":0,"end":2},"obj":"CD"}],"text":"19"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N3","span":{"begin":0,"end":2},"obj":"num"}],"text":"19"}