PubMed:32064853 / 267-278
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T47","span":{"begin":0,"end":11},"obj":"JJ"}],"text":"exploratory"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok52","span":{"begin":0,"end":11},"obj":"JJ"}],"text":"exploratory"}