PubMed:32118639 / 1500-1501
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T244","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok263","span":{"begin":0,"end":1},"obj":"DT"}],"text":"a"}