title: Plasma porphyrin concentrations in porphyria cutanea tarda.
mesh_terms: D000328:Adult; D000368:Aged; D004912:Erythrocytes / Q000032:analysis; D005243:Feces / Q000032:analysis; D005260:Female; D006801:Humans; D007982:Levulinic Acids / Q000652:urine; D008297:Male; D008875:Middle Aged; D011162:Porphobilinogen / Q000652:urine; D011164:Porphyrias / Q000097:blood* / Q000378:metabolism / Q000652:urine; D011166:Porphyrins / Q000032:analysis / Q000097:blood* / Q000652:urine; D013053:Spectrophotometry
chemical_list: D007982:Levulinic Acids; D011166:Porphyrins; D011162:Porphobilinogen