PubMed:32240670 / 711-713 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok129","span":{"begin":0,"end":2},"obj":"CD"}],"text":"80"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N4","span":{"begin":0,"end":2},"obj":"num"}],"text":"80"}