PubMed:32074550 / 55-63
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T7","span":{"begin":0,"end":8},"obj":"NN"}],"text":"efficacy"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok8","span":{"begin":0,"end":8},"obj":"NN"}],"text":"efficacy"}