PubMed:32150618 / 1750-1751
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T267","span":{"begin":0,"end":1},"obj":"CD"}],"text":"5"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok294","span":{"begin":0,"end":1},"obj":"CD"}],"text":"5"}