PubMed:32031570 / 3593-3596
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T722","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok850","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}