PubMed:32156607 / 1167-1172
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T195","span":{"begin":0,"end":5},"obj":"JJR"}],"text":"older"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok207","span":{"begin":0,"end":5},"obj":"JJR"}],"text":"older"}