PubMed:32164424 / 1261-1267
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T185","span":{"begin":0,"end":6},"obj":"JJ"}],"text":"cohort"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok212","span":{"begin":0,"end":6},"obj":"NN"}],"text":"cohort"}