PubMed:32064853 / 1397-1402
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T266","span":{"begin":0,"end":5},"obj":"VBD"}],"text":"began"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok301","span":{"begin":0,"end":5},"obj":"VBD"},{"id":"event8","span":{"begin":0,"end":5},"obj":"ASPECTUAL"}],"text":"began"}