PubMed:32133152 / 811-814
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T123","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok135","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}