PubMed:32118390 / 1834-1837
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T164","span":{"begin":0,"end":3},"obj":"JJ"}],"text":"old"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok494","span":{"begin":0,"end":3},"obj":"JJ"}],"text":"old"}