PubMed:32149773 / 1986-1993
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T315","span":{"begin":0,"end":7},"obj":"VBZ"}],"text":"remains"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok343","span":{"begin":0,"end":7},"obj":"VBZ"}],"text":"remains"}