PubMed:32224074 / 712-715 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok127","span":{"begin":0,"end":3},"obj":"CD"},{"id":"lookup17","span":{"begin":0,"end":3},"obj":"time"},{"id":"lookup18","span":{"begin":0,"end":3},"obj":"number"}],"text":"two"}