title: Beta-carotene treatment of erythropoietic protoporphyri.
mesh_terms: D000328:Adult; D002338:Carotenoids / Q000627:therapeutic use*; D002648:Child; D004920:Erythropoiesis; D006801:Humans; D011164:Porphyrias / Q000188:drug therapy*; D011524:Protoporphyrins; D012107:Research Design; D012871:Skin Diseases / Q000188:drug therapy*
chemical_list: D011524:Protoporphyrins; D002338:Carotenoids