PubMed:32061066 / 775-780
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T141","span":{"begin":0,"end":5},"obj":"NN"}],"text":"staff"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok147","span":{"begin":0,"end":5},"obj":"NN"}],"text":"staff"}