
PubMed:32133830 / 866-868
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T141","span":{"begin":0,"end":2},"obj":"CD"}],"text":"60"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok152","span":{"begin":0,"end":2},"obj":"CD"}],"text":"60"}