PubMed:32150360 / 1770-1778
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T300","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"sporadic"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok327","span":{"begin":0,"end":8},"obj":"JJ"}],"text":"sporadic"}