Acid-base balance.
D000136:Acid-Base Equilibrium; D001639:Bicarbonates / Q000097:blood / Q000652:urine; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007668:Kidney / Q000502:physiology; D008433:Mathematics; D014556:Urine / Q000032:analysis
D001639:Bicarbonates; D002245:Carbon Dioxide