PubMed:32134681 / 3221-3226
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T619","span":{"begin":0,"end":5},"obj":"NNS"}],"text":"signs"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok725","span":{"begin":0,"end":5},"obj":"NNS"}],"text":"signs"}