1. Late circumcision and lichen sclerosus et atrophicus of the penis;Ledwig;J Am Acad Dermatol,1989
2. Pinkus' guide to dermato-histopathology;Mehregan,1991
3. Dermal pathology;Graham,1972
4. Histopathology of the skin;Lever,1990
5. Lichen sclerosus et atrophicus;Ridley;Arch Dermatol,1987