PubMed:32031570 / 240-243
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T38","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok45","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}