PubMed:31986264 / 2299-2302
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T469","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"had"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok514","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event4","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"had"}