PubMed:32174267 / 645-653
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T100","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"positive"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok107","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"positive"}