PubMed:32052373 / 515-524
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T73","span":{"begin":0,"end":9},"obj":"VBG"}],"text":"requiring"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok89","span":{"begin":0,"end":9},"obj":"VBG"}],"text":"requiring"}