title: Vitamin D: new perspectives.
mesh_terms: D002117:Calcitriol / Q000502:physiology*; D002118:Calcium / Q000378:metabolism; D006801:Humans; D009369:Neoplasms / Q000473:pathology; D018167:Receptors, Calcitriol; D011987:Receptors, Steroid / Q000032:analysis
chemical_list: D018167:Receptors, Calcitriol; D011987:Receptors, Steroid; D002117:Calcitriol; D002118:Calcium