Peptic Ulcer Disease in Patients Under Antiplatelets or Anticoagulants: Analysis of Upper Gastrointestinal Endoscopy Findings - Mitselos, I; Moutzoukis, M; Lamouri, C; Tsoumani, N; Petrou, A; Fousekis, F; Baxevanos, G; Dimos, G; Raptis, L; Tzimas, T; Arvaniti, E; Gkizas, N; Liapis, I; Christodoulou, D (Endoscopy, 2021)