PubMed:32243238 / 1784-1786 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok391","span":{"begin":0,"end":2},"obj":"CD"}],"text":"91"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N8","span":{"begin":0,"end":2},"obj":"num"}],"text":"91"}