PubMed:32133152 / 1226-1235
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T183","span":{"begin":0,"end":9},"obj":"RB"}],"text":"gradually"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok211","span":{"begin":0,"end":9},"obj":"RB"}],"text":"gradually"}