PubMed:32064853 / 714-715
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T124","span":{"begin":0,"end":1},"obj":"CD"}],"text":"6"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok131","span":{"begin":0,"end":1},"obj":"CD"}],"text":"6"}