PubMed:32064853 / 1227-1232
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T234","span":{"begin":0,"end":5},"obj":"IN"}],"text":"after"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok266","span":{"begin":0,"end":5},"obj":"IN"}],"text":"after"}