title: Phototesting of patients with erythropoietic protoporphyria.
mesh_terms: D002338:Carotenoids / Q000627:therapeutic use*; D004353:Drug Evaluation, Preclinical / Q000379:methods*; D004920:Erythropoiesis; D006801:Humans; D010787:Photosensitivity Disorders / Q000517:prevention & control*; D011164:Porphyrias / Q000188:drug therapy*; D012871:Skin Diseases / Q000188:drug therapy*; D019207:beta Carotene
chemical_list: D019207:beta Carotene; D002338:Carotenoids