PubMed:32150360 / 1645-1648
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T278","span":{"begin":0,"end":3},"obj":"CD"}],"text":"800"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok302","span":{"begin":0,"end":3},"obj":"CD"}],"text":"800"}