title: Systematic bias between blood-pH instruments.
mesh_terms: D001769:Blood; D002021:Buffers / Q000592:standards; D004566:Electrodes; D006801:Humans; D006863:Hydrogen-Ion Concentration / Q000295:instrumentation; D011189:Potassium Chloride; D013696:Temperature; D014325:Tromethamine
chemical_list: D002021:Buffers; D014325:Tromethamine; D011189:Potassium Chloride