title: Magnesium deficiency causing persistent hypokalemia.
mesh_terms: D006801:Humans; D007008:Hypokalemia / Q000188:drug therapy / Q000209:etiology*; D008274:Magnesium / Q000627:therapeutic use; D008275:Magnesium Deficiency / Q000150:complications*; D011188:Potassium / Q000627:therapeutic use
chemical_list: D008274:Magnesium; D011188:Potassium