title: Faecal 'X porphyrin' in the hepatic porphyrias.
mesh_terms: D002855:Chromatography, Thin Layer; D004590:Electrophoresis, Paper; D005243:Feces / Q000032:analysis*; D006801:Humans; D008107:Liver Diseases / Q000378:metabolism; D008297:Male; D011164:Porphyrias / Q000378:metabolism*; D011166:Porphyrins / Q000032:analysis* / Q000652:urine; D012871:Skin Diseases / Q000378:metabolism
chemical_list: D011166:Porphyrins