PubMed:32156607 / 1100-1108
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T182","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"positive"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok193","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"positive"}