PubMed:32118640 / 3492-3495
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T606","span":{"begin":0,"end":3},"obj":"VBD"}],"text":"led"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok855","span":{"begin":0,"end":3},"obj":"VBD"},{"id":"event20","span":{"begin":0,"end":3},"obj":"OCCURRENCE"}],"text":"led"}