title: Variability of ionized calcium with pH of normal urine.
mesh_terms: D001322:Autoanalysis; D002118:Calcium / Q000652:urine*; D002413:Cations, Divalent / Q000652:urine; D006801:Humans; D006863:Hydrogen-Ion Concentration; D013054:Spectrophotometry, Atomic; D014545:Urinary Calculi / Q000378:metabolism
chemical_list: D002413:Cations, Divalent; D002118:Calcium