PubMed:32044814 / 1245-1248
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T212","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"had"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok239","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event17","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"had"}