PubMed:32118389 / 1260-1262
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T242","span":{"begin":0,"end":2},"obj":"DT"}],"text":"No"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok258","span":{"begin":0,"end":2},"obj":"DT"}],"text":"No"}