PubMed:31995857 / 1001-1009
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T170","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"compared"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok182","span":{"begin":0,"end":8},"obj":"VBN"}],"text":"compared"}