1. Wolff K, Stingi G. Pyoderma gangrenosum. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al, eds. Dermatology in general medicine: textbook and atlas. 3d ed. New York: McGraw-Hill, 1987:1171–82
2. Leukocyte Colony-Stimulating Factors
3. Pyoderma gangrenosum in an HIV-infected patient
4. Pyoderma Gangrenosum and Related Disorders