PubMed:31992388 / 529-533
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T78","span":{"begin":0,"end":4},"obj":"NN"}],"text":"risk"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok84","span":{"begin":0,"end":4},"obj":"NN"}],"text":"risk"}