PubMed:32167524 / 3-12
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T1","span":{"begin":2,"end":9},"obj":"NNS"}],"text":"k Factors"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok2","span":{"begin":2,"end":9},"obj":"NNP"}],"text":"k Factors"}