PubMed:32239591 / 759-760
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok135","span":{"begin":0,"end":1},"obj":"CD"}],"text":"6"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"U1","span":{"begin":0,"end":1},"obj":"unit"}],"text":"6"}