PubMed:32224151 / 1201-1203
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok245","span":{"begin":0,"end":2},"obj":"CD"}],"text":"22"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"N3","span":{"begin":0,"end":2},"obj":"num"}],"text":"22"}