1. Management of acute bleeding from a peptic ulcer;Gralnek;New Engl J Med,2008
2. Acute upper gastrointestinal bleeding in the Amsterdam area: incidence, diagnosis, and clinical outcome;Vreeburg;Am J Gastroenterol,1997
3. Epidemiology of hospitalization for acute upper gastrointestinal hemorrhage: a population-based study;Longstreth;Am J Gastroenterol,1995
4. Incidence of and mortality from acute upper gastrointestinal haemorrhage in the United Kingdom. Steering Committee and members of the National Audit of Acute Upper Gastrointestinal Haemorrhage;Rockall;Br Med J (Clin Res Ed),1995
5. The epidemiology of hemorrhage from the upper gastrointestinal tract in the mid-nineties—has anything changed?;Skok;Hepato-Gastroenterology,1998