PubMed:32171865 / 1516-1520
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T291","span":{"begin":0,"end":4},"obj":"RBR"}],"text":"less"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok324","span":{"begin":0,"end":4},"obj":"RBR"}],"text":"less"}