PubMed:32075365 / 94-96
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T14","span":{"begin":0,"end":2},"obj":"IN"}],"text":"At"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok16","span":{"begin":0,"end":2},"obj":"IN"}],"text":"At"}