PubMed:32164424 / 497-506
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T77","span":{"begin":0,"end":9},"obj":"VBD"}],"text":"prolonged"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok85","span":{"begin":0,"end":9},"obj":"JJ"}],"text":"prolonged"}