Department of Gastroenterology;
Hospital Senhora da Oliveira-Guimarães;
Creixomil;
4835-044 Guimarães;
Portugal;
Life and Health Sciences Research Institute(ICVS);
School of Health Sciences;
ICVS/3B’s Associate Laboratory;
University of Minho;
Campus de Gualtar;
4835-044 Braga/Guimarães;
Portugal;
Upper; gastrointestinal; bleeding; Risk; scores; Risk; assessment; Rockall; score; Glasgow; blatchfordscore;