PubMed:32105637 / 1713-1715
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T360","span":{"begin":0,"end":2},"obj":"CD"}],"text":"53"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok402","span":{"begin":0,"end":2},"obj":"CD"}],"text":"53"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N4","span":{"begin":0,"end":2},"obj":"num"}],"text":"53"}