PubMed:32141570 / 12-23 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok3","span":{"begin":6,"end":10},"obj":"CD"},{"id":"tok4","span":{"begin":10,"end":11},"obj":":"},{"id":"lookup1","span":{"begin":6,"end":10},"obj":"year"}],"text":"virus 2019-"}