PubMed:32061200 / 1244-1248
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T223","span":{"begin":0,"end":4},"obj":"VBD"}],"text":"were"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok243","span":{"begin":0,"end":4},"obj":"VBD"}],"text":"were"}