title: Letter: The carbonate affair--and the magnesium mystery?
mesh_terms: D002119:Calcium Carbonate / Q000494:pharmacology / Q000627:therapeutic use*; D004064:Digestive System / Q000187:drug effects; D005767:Gastrointestinal Diseases / Q000188:drug therapy; D008274:Magnesium / Q000009:adverse effects* / Q000494:pharmacology / Q000627:therapeutic use; D012492:Salts
chemical_list: D012492:Salts; D002119:Calcium Carbonate; D008274:Magnesium