PubMed:32235486 / 935-937 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok178","span":{"begin":0,"end":2},"obj":"CD"}],"text":"61"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"U2","span":{"begin":1,"end":2},"obj":"unit"}],"text":"61"}