title: Interference with the Astra 8 and Synchron CX3 assays of urea nitrogen in serum by a high-M(r) inhibitor in a patient with multiple myeloma.
authors.forename: J D
authors.initials: JD
authors.lastname: Smith
authors.forename: J
authors.initials: J
authors.lastname: Nobiletti
authors.forename: M
authors.initials: M
authors.lastname: Freed
authors.forename: H
authors.initials: H
authors.lastname: Malkus
authors.forename: R
authors.initials: R
authors.lastname: Donabedian
mesh_terms: D000368:Aged; D001806:Blood Urea Nitrogen; D003404:Creatinine / Q000097:blood; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D009101:Multiple Myeloma / Q000097:blood*
chemical_list: D003404:Creatinine