PubMed:32023682 / 732-738
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T121","span":{"begin":0,"end":6},"obj":"NN"}],"text":"spread"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok130","span":{"begin":0,"end":6},"obj":"NN"}],"text":"spread"}