PubMed:32061066 / 1711-1712
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T336","span":{"begin":0,"end":1},"obj":"CD"}],"text":"7"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok381","span":{"begin":0,"end":1},"obj":"CD"}],"text":"7"}