PubMed:32243238 / 1198-1200 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok216","span":{"begin":0,"end":2},"obj":"CD"}],"text":"61"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N2","span":{"begin":0,"end":2},"obj":"num"}],"text":"61"}