PubMed:32056396 / 25-33
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T3","span":{"begin":1,"end":5},"obj":"CD"}],"text":" 2019 No"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":1,"end":5},"obj":"CD"},{"id":"lookup1","span":{"begin":1,"end":5},"obj":"year"}],"text":" 2019 No"}