PubMed:32110742 / 108-115
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T18","span":{"begin":0,"end":7},"obj":"NN"}],"text":"cluster"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok19","span":{"begin":0,"end":7},"obj":"NN"}],"text":"cluster"}