PubMed:32118389 / 2054-2062
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T435","span":{"begin":0,"end":8},"obj":"VBD"}],"text":"occurred"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok478","span":{"begin":0,"end":8},"obj":"VBD"},{"id":"event12","span":{"begin":0,"end":8},"obj":"OCCURRENCE"}],"text":"occurred"}