PubMed:32019667 / 455-459
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T79","span":{"begin":0,"end":4},"obj":"NN"}],"text":"risk"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok89","span":{"begin":0,"end":4},"obj":"NN"}],"text":"risk"}