PubMed:32171193 / 43-49
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T6","span":{"begin":3,"end":6},"obj":"CC"}],"text":"-1 and"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok7","span":{"begin":1,"end":2},"obj":"CD"},{"id":"tok8","span":{"begin":3,"end":6},"obj":"CC"}],"text":"-1 and"}