PubMed:32061200 / 592-595
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T103","span":{"begin":0,"end":3},"obj":"JJ"}],"text":"old"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok112","span":{"begin":0,"end":3},"obj":"JJ"}],"text":"old"}