PubMed:32027573 / 2082-2090
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T411","span":{"begin":0,"end":8},"obj":"NN"}],"text":"exposure"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok446","span":{"begin":0,"end":8},"obj":"NN"}],"text":"exposure"}