title: Is old blood bad blood?
authors.forename: Sunil V
authors.initials: SV
authors.lastname: Rao
authors.forename: Robert M
authors.initials: RM
authors.lastname: Califf
mesh_terms: D001793:Blood Preservation / Q000592:standards*; D001803:Blood Transfusion / Q000592:standards*; D006801:Humans; D010101:Oxygen Consumption / Q000502:physiology; D065227:Transfusion Reaction