PubMed:32172546 / 21-25
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":2,"end":4},"obj":"IN"}],"text":"t of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":2,"end":4},"obj":"IN"}],"text":"t of"}