PubMed:32243238 / 1323-1326 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok256","span":{"begin":0,"end":3},"obj":"CD"}],"text":"139"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N9","span":{"begin":0,"end":3},"obj":"num"}],"text":"139"}