PubMed:32027573 / 1676-1679
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T335","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"did"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok364","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event9","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"did"}