PubMed:32083638 / 622-627
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T91","span":{"begin":0,"end":5},"obj":"JJ"}],"text":"clear"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok110","span":{"begin":0,"end":5},"obj":"JJ"}],"text":"clear"}