PubMed:31967321 / 1344-1354
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T204","span":{"begin":0,"end":10},"obj":"VB"}],"text":"contribute"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok220","span":{"begin":0,"end":10},"obj":"VB"},{"id":"event1","span":{"begin":0,"end":10},"obj":"OCCURRENCE"}],"text":"contribute"}