PubMed:32171865 / 1554-1555
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T302","span":{"begin":0,"end":1},"obj":"CD"}],"text":"5"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok339","span":{"begin":0,"end":1},"obj":"CD"}],"text":"5"}