PubMed:31995857 / 1533-1539
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T280","span":{"begin":0,"end":6},"obj":"NN"}],"text":"middle"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok317","span":{"begin":0,"end":6},"obj":"NN"}],"text":"middle"}