title: Porphyrins found in urine of patients with symptomatic porphyria.
mesh_terms: D002855:Chromatography, Thin Layer; D006801:Humans; D011164:Porphyrias / Q000652:urine*; D011166:Porphyrins / Q000652:urine*; D013053:Spectrophotometry
chemical_list: D011166:Porphyrins