PubMed:32074786 / 2589-2598
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T388","span":{"begin":0,"end":9},"obj":"VBN"}],"text":"performed"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok417","span":{"begin":0,"end":9},"obj":"VBN"},{"id":"event7","span":{"begin":0,"end":9},"obj":"OCCURRENCE"}],"text":"performed"}