PubMed:32061200 / 16-24
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T4","span":{"begin":0,"end":8},"obj":"NNS"}],"text":"features"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok5","span":{"begin":0,"end":8},"obj":"NNS"}],"text":"features"}