PubMed:32141570 / 1684-1694
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T280","span":{"begin":0,"end":10},"obj":"NN"}],"text":"comparison"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok316","span":{"begin":0,"end":10},"obj":"NN"}],"text":"comparison"}