PubMed:32118639 / 2041-2045
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T336","span":{"begin":0,"end":4},"obj":"NNS"}],"text":"days"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok386","span":{"begin":0,"end":4},"obj":"NNS"},{"id":"lookup35","span":{"begin":0,"end":4},"obj":"date_unit"}],"text":"days"}