PubMed:32031570 / 993-1005
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T154","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok167","span":{"begin":0,"end":12},"obj":"NN"}],"text":"transmission"}