PubMed:32154135 / 1787-1791
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T332","span":{"begin":0,"end":4},"obj":"NN"}],"text":"swab"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok368","span":{"begin":0,"end":4},"obj":"NN"}],"text":"swab"}