PubMed:32064855 / 921-932
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T181","span":{"begin":0,"end":11},"obj":"NN"}],"text":"aggravation"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok188","span":{"begin":0,"end":11},"obj":"NN"}],"text":"aggravation"}