1. Porphyria: Sickle Cell Anemia;Blatchley;Dent. Clin,1968
2. Cutaneous porphyria in the Adult;Bolgert;Br. J. Dermatol,1954
3. Oral Medicine;Burket,1965
4. Disorders of Porphyrin Metabolism;Cartwright,1966
5. Inheritance of Porphyria;Dean;Br. Med. J,1955