PubMed:32074786 / 742-746
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T121","span":{"begin":0,"end":4},"obj":"NNS"}],"text":"days"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok130","span":{"begin":0,"end":4},"obj":"NNS"},{"id":"lookup20","span":{"begin":0,"end":4},"obj":"date_unit"}],"text":"days"}