PubMed:32150360 / 4058-4071
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T685","span":{"begin":0,"end":13},"obj":"NNS"}],"text":"uncertainties"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok750","span":{"begin":0,"end":13},"obj":"NNS"}],"text":"uncertainties"}