PubMed:32133830 / 59-62
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T9","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok10","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}