title: The nature of the endocrine system. Part 6: the parathyroid glands and calcium metabolism.
mesh_terms: D002118:Calcium / Q000378:metabolism*; D006801:Humans; D006961:Hyperparathyroidism / Q000378:metabolism; D007011:Hypoparathyroidism / Q000378:metabolism; D010018:Osteomalacia; D010024:Osteoporosis
chemical_list: D002118:Calcium