PubMed:32149773 / 249-252
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T40","span":{"begin":0,"end":3},"obj":"VBZ"}],"text":"has"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok42","span":{"begin":0,"end":3},"obj":"VBZ"}],"text":"has"}