A Rare Challenging Complication Of Intragastric Balloon: Gastric Outlet Obstruction - Lamas, S; Lopez-Mourelle, A; Arguelles-Estrada, P; Gejo, A; Carballo-Folgoso, L; Celada-Sendino, M; Rodriguez-Ferreiro, N; Beltran, V; del Caño-Cerdan, C; Nieto-Jara, A; Suarez-Noya, A; Fraile, M; Florez-Diez, P (Endoscopy, 2021)