title: X-porphyrins and the porphyrias.
mesh_terms: D002623:Chemistry Techniques, Analytical; D004586:Electrophoresis; D005260:Female; D006801:Humans; D008875:Middle Aged; D011164:Porphyrias / Q000378:metabolism*; D011166:Porphyrins / Q000652:urine
chemical_list: D011166:Porphyrins