PubMed:32052466 / 594-600
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T95","span":{"begin":0,"end":6},"obj":"JJ"}],"text":"useful"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok102","span":{"begin":0,"end":6},"obj":"JJ"}],"text":"useful"}