PubMed:32022276 / 821-825
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T124","span":{"begin":0,"end":4},"obj":"VBD"}],"text":"were"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok136","span":{"begin":0,"end":4},"obj":"VBD"}],"text":"were"}