M. F. Keser, Y. Atayan, M. Duru, A. Hafsa Çağın, Z. Büşra Keser, and Y. F. Çağın, “Upadacitinib-Induced Sepsis Resulting in Death in Crohn’s Disease: The First Reported Case”, Turkish Journal of Gastroenterology, vol. 37, no. 4, pp. 526–528, Jan. 2026.