Safety and efficacy of transpancreatic sphincterotomy as first line technique in difficult biliary cannulation - El Mrini, A; El Amrani, K; Bahlaoui, O; Belabbes, F; Delsa, H; Bennani, Y; El Idrissi Lamghari, A; Anass, N; Benelbarhdadi, I; Khannoussi, W (Endoscopy, 2025)