Department of Gastroenterology;
Hospital da Senhora da Oliveira-Guimarães;
Guimarães 4835-044;
Portugal;
Department of Life and Health Sciences Research Institute(ICVS);
School of Medicine;
University of Minho;
Braga 4710-057;
Portugal;
Department of Life and Health Sciences Research Institute(ICVS)/3B’s;
PT Government Associate Laboratory;
Braga 4710-057;
Portugal;
Department of Gastroenterology;
Hospital de Santa Maria;
Centro Hospitalar Lisboa Norte;
Lisbon 1649-035;
Portugal;
Department of University Clinic of Medicine II;
Faculty of Medicine;
University of Lisbon;
Lisbon 1649-028;
Portugal;
Department of Gastroenterology;
Centro Hospitalar e Universitário de Coimbra;
Coimbra 3000-075;
Portugal;
Department of Faculty of Medicine;
University of Coimbra;
Coimbra 3004-504;
Portugal;
Department of Gastroenterology;
Centro Hospitalar de São João;
Porto 4200-319;
Portugal;
Department of Gastroenterology;
Faculty of Medicine;
University of Porto;
Porto 4200-319;
Portugal;
Department of Gastroenterology and Hepatology Training Center;
World Gastroenterology Organization;
Porto 4200-319;
Portugal;
Department of Gastroenterology;
Centro Hospitalar do Porto;
Porto 4099-001;
Portugal;
Department of Institute of Biomedical Sciences Abel Salazar;
University of Porto;
Porto 4050-313;
Portugal;
Anemia iron-deficiency; Erythrocyte transfusion; Ferric carboxymaltose; Gastrointestinal hemorrhage; Iron; Practice guidelines as topic;