PubMed:32061066 / 16-24
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T3","span":{"begin":3,"end":5},"obj":"IN"}],"text":"es of 20"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":3,"end":5},"obj":"IN"}],"text":"es of 20"}