PubMed:32176808 / 388-393
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T69","span":{"begin":0,"end":5},"obj":"MD"}],"text":"could"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok77","span":{"begin":0,"end":5},"obj":"MD"}],"text":"could"}