PubMed:32061066 / 22-28
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2019 n"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup1","span":{"begin":0,"end":4},"obj":"year"}],"text":"2019 n"}