Wąsik, Magdalena Maria, Anoni Wiktor Bazielich, and Andrzej L. Komorowski. “Upper GI Bleeding As a First Symptom of Gallbladder Cancer”. Medicine and Public Health 1, no. 1 (April 17, 2023): 1–5. Accessed September 24, 2026. https://journals.uafm.edu.pl/mph/article/view/103.