Division of Gastroent-erology;
Department of Internal Medicine;
'Sestre Milosrdnice' University Hospital Center;
Division of Endo-crinology;
Department of Internal Medicine;
'Sestre Milosrdnice' University Hospital Center;
Gastronterologie;
Allgemeine Innere Medizin und Geriatrie;
Rems -Murr Klinik Winnenden;
Upper gastrointestinal bleeding; Peptic ulcer bleeding; Glasgow-Blatchford score; Rockall score; Baylor bleeding score;