title: Evaluation of a reflectance photometric method for determination of urea in blood, plasma, or serum.
mesh_terms: D006801:Humans; D010783:Photometry / Q000379:methods; D011933:Reagent Kits, Diagnostic; D014508:Urea / Q000097:blood*
chemical_list: D011933:Reagent Kits, Diagnostic; D014508:Urea