PubMed:32176808 / 1478-1490
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T239","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok263","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}