PubMed:31986264 / 1572-1574
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T274","span":{"begin":0,"end":2},"obj":"CD"}],"text":"40"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok304","span":{"begin":0,"end":2},"obj":"CD"}],"text":"40"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N1","span":{"begin":0,"end":2},"obj":"num"}],"text":"40"}