PubMed:31996494 / 420-428
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T77","span":{"begin":0,"end":8},"obj":"NN"}],"text":"outbreak"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok90","span":{"begin":0,"end":8},"obj":"NN"}],"text":"outbreak"}