External Pancreatic Fistulas Resistant to Conventional Endoscopic Therapy: Endoscopic Closure With N-Butyl-2-Cyanoacrylate (Glubran 2) - Mutignani, M; Tringali, A; Khodadadian, E; Petruzziello, L; Spada, C; Spera, G; Familiari, P; Costamagna, G (Endoscopy, 2004)