PubMed:32050635 / 188-189
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T30","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok34","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}