PubMed:32181672 / 1549-1551
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok347","span":{"begin":0,"end":2},"obj":"CD"}],"text":"48"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T9","span":{"begin":0,"end":2},"obj":"http://purl.obolibrary.org/obo/CLO_0001382"}],"text":"48"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N6","span":{"begin":0,"end":2},"obj":"num"}],"text":"48"}