PubMed:32080723 / 16-27
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T2","span":{"begin":0,"end":11},"obj":"NN"}],"text":"association"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok3","span":{"begin":0,"end":11},"obj":"NN"}],"text":"association"}