PubMed:32171193 / 475-480
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T76","span":{"begin":0,"end":5},"obj":"VB"}],"text":"cause"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok86","span":{"begin":0,"end":5},"obj":"VB"},{"id":"event2","span":{"begin":0,"end":5},"obj":"OCCURRENCE"}],"text":"cause"}