PubMed:32145714 / 519-521
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T89","span":{"begin":0,"end":2},"obj":"CD"}],"text":"16"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok101","span":{"begin":0,"end":2},"obj":"CD"}],"text":"16"}