title: Screening test for acute porphyria.
mesh_terms: D000447:Aldehydes; D005189:False Positive Reactions; D006801:Humans; D008722:Methods; D011164:Porphyrias / Q000175:diagnosis / Q000652:urine*; D014558:Urobilinogen / Q000652:urine*
chemical_list: D000447:Aldehydes; D014558:Urobilinogen