PubMed:32118639 / 2671-2679
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T454","span":{"begin":0,"end":8},"obj":"NN"}],"text":"duration"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok541","span":{"begin":0,"end":8},"obj":"NN"}],"text":"duration"}