title: Enzymatic analysis by means of the air-gap electrode determination of urea in blood.
mesh_terms: D002021:Buffers; D004566:Electrodes / Q000295:instrumentation*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008722:Methods; D011199:Potentiometry; D014508:Urea / Q000097:blood*; D014510:Urease
chemical_list: D002021:Buffers; D014508:Urea; D014510:Urease