PubMed:32118639 / 248-257
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T39","span":{"begin":0,"end":9},"obj":"NN"}],"text":"clearance"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok41","span":{"begin":0,"end":9},"obj":"NN"}],"text":"clearance"}