PubMed:32174053 / 247-252
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T33","span":{"begin":0,"end":5},"obj":"RB"}],"text":"later"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok40","span":{"begin":0,"end":5},"obj":"RB"}],"text":"later"}