PubMed:32133830 / 1689-1693
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T310","span":{"begin":0,"end":4},"obj":"NNS"}],"text":"days"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok345","span":{"begin":0,"end":4},"obj":"NNS"},{"id":"lookup40","span":{"begin":0,"end":4},"obj":"date_unit"}],"text":"days"}