PubMed:32147628 / 551-557
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T89","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"agents"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok97","span":{"begin":0,"end":6},"obj":"NNS"}],"text":"agents"}