PubMed:32235085 / 196-198
Annnotations
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok39","span":{"begin":1,"end":2},"obj":"DT"}],"text":" a"}
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":1,"end":2},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" a"}