PubMed:32062957 / 1144-1153 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok248","span":{"begin":0,"end":1},"obj":"CD"},{"id":"tok249","span":{"begin":1,"end":2},"obj":"."},{"id":"tok250","span":{"begin":2,"end":3},"obj":"CD"},{"id":"tok251","span":{"begin":3,"end":4},"obj":"NN"},{"id":"tok252","span":{"begin":4,"end":6},"obj":"CD"},{"id":"tok253","span":{"begin":6,"end":7},"obj":"("},{"id":"tok254","span":{"begin":7,"end":8},"obj":"CD"},{"id":"tok255","span":{"begin":8,"end":9},"obj":")"}],"text":"4.0×10(9)"}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":9},"obj":"num"}],"text":"4.0×10(9)"}