PubMed:32133830 / 1209-1211
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T216","span":{"begin":0,"end":2},"obj":"CD"}],"text":"19"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok245","span":{"begin":0,"end":2},"obj":"CD"}],"text":"19"}