PubMed:31986264 / 44-52
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T6","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2019 nov"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok7","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup1","span":{"begin":0,"end":4},"obj":"year"}],"text":"2019 nov"}