PubMed:32031570 / 957-965
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T151","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"compared"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok163","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"compared"}