PubMed:32234127 / 410-412 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok66","span":{"begin":0,"end":2},"obj":"CD"}],"text":"91"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":2},"obj":"num"}],"text":"91"}