PubMed:32171865 / 33-36
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T5","span":{"begin":0,"end":2},"obj":"IN"}],"text":"of "}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok6","span":{"begin":0,"end":2},"obj":"IN"}],"text":"of "}