title: Factitiously low recoveries of urea in control sera by the Kodak Ektachem method.
authors.forename: J C
authors.initials: JC
authors.lastname: Libeer
authors.forename: W
authors.initials: W
authors.lastname: Cooreman
authors.forename: L
authors.initials: L
authors.lastname: Theunis
mesh_terms: D005188:False Negative Reactions; D006801:Humans; D006863:Hydrogen-Ion Concentration; D011786:Quality Control; D011933:Reagent Kits, Diagnostic / Q000592:standards*; D014508:Urea / Q000097:blood*
chemical_list: D011933:Reagent Kits, Diagnostic; D014508:Urea