PubMed:32110742 / 1631-1640
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T154","span":{"begin":0,"end":9},"obj":"VBN"}],"text":"presented"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok276","span":{"begin":0,"end":9},"obj":"VBN"}],"text":"presented"}