PubMed:31995857 / 1345-1348
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T244","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok274","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"was"}