PubMed:32211816 / 1436-1438
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok293","span":{"begin":0,"end":2},"obj":"CD"}],"text":"34"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T7","span":{"begin":0,"end":2},"obj":"http://purl.obolibrary.org/obo/CLO_0001302"}],"text":"34"}