PubMed:31992388 / 594-602
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T91","span":{"begin":0,"end":8},"obj":"NN"}],"text":"interval"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok97","span":{"begin":0,"end":8},"obj":"NN"}],"text":"interval"}