title: High-performance liquid chromatographic analysis of biologically important porphyrins.
mesh_terms: D002614:Chelating Agents; D002851:Chromatography, High Pressure Liquid; D003300:Copper; D006801:Humans; D011164:Porphyrias / Q000652:urine; D011166:Porphyrins / Q000652:urine*
chemical_list: D002614:Chelating Agents; D011166:Porphyrins; D003300:Copper