PubMed:32118390 / 1386-1389
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok335","span":{"begin":0,"end":3},"obj":"CD"}],"text":"553"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N2","span":{"begin":0,"end":3},"obj":"num"}],"text":"553"}