PubMed:32118639 / 2914-2922
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T494","span":{"begin":0,"end":8},"obj":"NN"}],"text":"duration"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok592","span":{"begin":0,"end":8},"obj":"NN"}],"text":"duration"}