PubMed:32181672 / 764-766 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok146","span":{"begin":0,"end":2},"obj":"CD"}],"text":"39"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N6","span":{"begin":0,"end":2},"obj":"num"}],"text":"39"}