title: Vitamin D and jejunoileal bypass.
mesh_terms: D002762:Cholecalciferol / Q000627:therapeutic use*; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000188:drug therapy / Q000209:etiology*; D007082:Ileum / Q000601:surgery*; D007583:Jejunum / Q000601:surgery*; D009765:Obesity / Q000628:therapy*; D011183:Postoperative Complications
chemical_list: D002762:Cholecalciferol