PubMed:32176772 / 1174-1182
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T253","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"Compared"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok294","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"Compared"}