PubMed:32214079 / 54-62 JSONTXT

{"project":"LitCovid-TimeML","denotations":[{"id":"tok8","span":{"begin":2,"end":6},"obj":"CD"},{"id":"tok9","span":{"begin":7,"end":8},"obj":"("},{"id":"lookup1","span":{"begin":2,"end":6},"obj":"year"}],"text":"e 2019 ("}