PubMed:32075365 / 374-382
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T67","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"Previous"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok72","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"Previous"}