PubMed:32181672 / 760-762 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok144","span":{"begin":0,"end":2},"obj":"CD"}],"text":"42"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N5","span":{"begin":0,"end":2},"obj":"num"}],"text":"42"}