PubMed:32027573 / 55-68
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T8","span":{"begin":0,"end":13},"obj":"NNP"}],"text":"BackgroundThe"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok12","span":{"begin":0,"end":13},"obj":"NNP"}],"text":"BackgroundThe"}