title: Porphyric puzzle: comment on the concise communication by Cohen et al.
authors.forename: C A
authors.initials: CA
authors.lastname: Pierach
mesh_terms: D006801:Humans; D011162:Porphobilinogen / Q000652:urine*; D011164:Porphyrias / Q000175:diagnosis* / Q000652:urine
chemical_list: D011162:Porphobilinogen