PubMed:32167166 / 1494-1502
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T240","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"explored"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok273","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"explored"}