PMC:7077337 / 172-228
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":30,"end":31},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"stract\nIn early December 2019 a cluster of cases of pneu"}