PubMed:32156607 / 1184-1187
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T197","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"had"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok209","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event9","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"had"}