PubMed:31986264 / 1792-1793
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T348","span":{"begin":0,"end":1},"obj":"CD"}],"text":"3"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok378","span":{"begin":0,"end":1},"obj":"CD"}],"text":"3"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N8","span":{"begin":0,"end":1},"obj":"num"}],"text":"3"}