PubMed:32145714 / 1870-1873
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T328","span":{"begin":0,"end":3},"obj":"NN"}],"text":"use"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok391","span":{"begin":0,"end":3},"obj":"NN"}],"text":"use"}