1. Kappas A, Sassa S, Galbraith RA, et al. The Porphyrias.In: Scriver CR, Beaudet AL, Sly WS,et al. (Eds.). The Metabolic Basis of Inherited Disease. 6th ed., New York: McGraw-Hill, 1989; 1305–65.
2. Bloomer JR, Bonkovsky HL. The porphyrias. Diseases of the Month 1989; 35: 13–54.
3. Kushner IP. Laboratory diagnosis of the porphyrias. N Engl J Med 1991; 324: 1432–4.
4. Becker DM, Kramer S. The neurological manifestations of porphyria: a review. Medicine 1977; 56: 411–23.
5. Stoelting RK, Dierdof SF, McCammon RL. (Eds.) Metabolism and Nutrition:In: Anesthesia and Co-existing Disease. 2nd ed. New York: Churchill Livingstone, 1988; 529–32.