PubMed:31991628 / 80-83
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T15","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok17","span":{"begin":1,"end":3},"obj":"IN"}],"text":" of"}