PubMed:32226287 / 948-950 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok174","span":{"begin":0,"end":2},"obj":"CD"}],"text":"80"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":2},"obj":"num"}],"text":"80"}