D. A. Abou-Taleb, M. F. Sherif, and A. S. Mohammed, “Atypical Pyoderma Gangrenosum with Ulcerative Colitis treated successfully with prednisolone and mesalazine: A case report”, Glob J Medical Clin Case Rep, vol. 8, no. 2, pp. 065–068, Jul. 2021.