title: Porphyrins and porphyrinogens--clinical importance and polarographic behaviour.
mesh_terms: D006801:Humans; D011048:Polarography; D011164:Porphyrias / Q000175:diagnosis*; D011165:Porphyrinogens / Q000032:analysis*; D011166:Porphyrins / Q000032:analysis*
chemical_list: D011165:Porphyrinogens; D011166:Porphyrins