PubMed:32061200 / 857-860
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T152","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"had"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok166","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event13","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"had"}