PubMed:32064853 / 1105-1113
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T215","span":{"begin":0,"end":8},"obj":"VBD"}],"text":"occurred"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok243","span":{"begin":0,"end":8},"obj":"VBD"},{"id":"event28","span":{"begin":0,"end":8},"obj":"OCCURRENCE"}],"text":"occurred"}