PubMed:31995857 / 1273-1281
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T226","span":{"begin":0,"end":8},"obj":"NN"}],"text":"interval"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok252","span":{"begin":0,"end":8},"obj":"NN"}],"text":"interval"}