PubMed:32060619 / 18-27
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T3","span":{"begin":2,"end":6},"obj":"CD"}],"text":"f 2019 no"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":2,"end":6},"obj":"CD"},{"id":"lookup1","span":{"begin":2,"end":6},"obj":"year"}],"text":"f 2019 no"}