PubMed:32052373 / 853-865
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T119","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok137","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}