PubMed:32106216 / 1672-1684
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T163","span":{"begin":0,"end":12},"obj":"VB"}],"text":"characterize"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok311","span":{"begin":0,"end":12},"obj":"VB"}],"text":"characterize"}