1. Kauppinen R. Porphyrias. Lancet 2005; 365:241–252.
2. Vallat C, Dereure O, Bellet H et al. [Porphyrie cutanée tardive en Languedoc-Roussillon. Étude épidémiologique sur 24 ans]. Presse Med 1996; 25:775.
3. Santos JL, Grandal M, Fontanellas A et al. Prevalence of porphyria cutanea tarda in Madrid and relationship between urine porphyrin and ethanol intake in a multiple linear regression model. Med Clin (Barc) 1996; 107:614–616.
4. Sampietro M, Fiorelli G, Fargion S. Iron overload in porphyria cutanea tarda. Haematologica 1999; 84:248–253.
5. Roberts AG, Whatley SD, Morgan RR et al. Increased frequency of the haemochromatosis Cys282Tyr mutation in sporadic porphyria cutanea tarda. Lancet 1997; 349:321–323.