PubMed:32031570 / 1340-1352
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T216","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok237","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}