PubMed:32118389 / 643-647
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T104","span":{"begin":0,"end":4},"obj":"CD"}],"text":"2020"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok111","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup18","span":{"begin":0,"end":4},"obj":"year"}],"text":"2020"}