PubMed:32118390 / 1889-1891
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T176","span":{"begin":0,"end":2},"obj":"CD"}],"text":"17"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok506","span":{"begin":0,"end":2},"obj":"CD"}],"text":"17"}