PubMed:32216961 / 899-900
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok159","span":{"begin":0,"end":1},"obj":"CD"}],"text":"7"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"U2","span":{"begin":0,"end":1},"obj":"unit"}],"text":"7"}