PubMed:32031570 / 1160-1167
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T180","span":{"begin":0,"end":7},"obj":"VBN"}],"text":"tracked"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok193","span":{"begin":0,"end":7},"obj":"VBN"},{"id":"event32","span":{"begin":0,"end":7},"obj":"OCCURRENCE"}],"text":"tracked"}