PubMed:32154135 / 1707-1708
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T317","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok352","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}