PubMed:32217650 / 819-827
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok138","span":{"begin":0,"end":4},"obj":"JJ"},{"id":"tok139","span":{"begin":5,"end":8},"obj":"NN"}],"text":"mean age"}
MeasurableQuantitativeAnnotation
{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"E1","span":{"begin":0,"end":8},"obj":"entity"}],"text":"mean age"}