title: [Biological aspects of porphyria].
mesh_terms: D005246:Feedback; D005809:Genes, Regulator; D006801:Humans; D011164:Porphyrias / Q000378:metabolism*; D011166:Porphyrins / Q000096:biosynthesis*
chemical_list: D011166:Porphyrins
vernacular_title: Aspects biologiques des porphyries.