title: Letter: Etiology of erythropoietic protoporphyria, and protection of photosensitive subjects.
mesh_terms: D001855:Bone Marrow Diseases; D002338:Carotenoids / Q000627:therapeutic use; D004920:Erythropoiesis; D006801:Humans; D010787:Photosensitivity Disorders / Q000188:drug therapy / Q000209:etiology*; D011164:Porphyrias / Q000150:complications / Q000188:drug therapy / Q000209:etiology*; D013577:Syndrome
chemical_list: D002338:Carotenoids