PubMed:32164424 / 277-287
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T43","span":{"begin":0,"end":10},"obj":"VBN"}],"text":"documented"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok48","span":{"begin":0,"end":10},"obj":"VBN"},{"id":"event8","span":{"begin":0,"end":10},"obj":"OCCURRENCE"}],"text":"documented"}