PubMed:32181672 / 60-68 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok9","span":{"begin":0,"end":4},"obj":"CD"},{"id":"tok10","span":{"begin":5,"end":6},"obj":"("},{"id":"lookup2","span":{"begin":0,"end":4},"obj":"year"}],"text":"2019 (CO"}