PubMed:32061066 / 845-846
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T153","span":{"begin":0,"end":1},"obj":"CD"}],"text":"6"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok161","span":{"begin":0,"end":1},"obj":"CD"}],"text":"6"}