PubMed:32106216 / 209-214
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T37","span":{"begin":0,"end":5},"obj":"VBD"}],"text":"began"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok41","span":{"begin":0,"end":5},"obj":"VBD"},{"id":"event5","span":{"begin":0,"end":5},"obj":"ASPECTUAL"}],"text":"began"}