The Impact of Papillary Morphology on Bile Duct Cannulation: Preliminary Insights from a Prospective Study - el jim, R; Maria, L; Asmae, L; Abid, H; Lahmidani, N; Elmekkaoui, A; El, Y M; Mohammed, E A; Ibrahimi, S A; Benajah, D A (Endoscopy, 2025)