PubMed:32031570 / 1734-1741
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T307","span":{"begin":0,"end":7},"obj":"NNS"}],"text":"seconds"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok354","span":{"begin":0,"end":7},"obj":"NNS"},{"id":"lookup43","span":{"begin":0,"end":7},"obj":"time_unit"}],"text":"seconds"}