PubMed:32102777 / 106-117
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T17","span":{"begin":0,"end":5},"obj":"IN"}],"text":"since Decem"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok19","span":{"begin":0,"end":5},"obj":"IN"}],"text":"since Decem"}