3Farrell JJ, Friedman LS. Gastrointestinal bleeding in the elderly.Gastroenterol Clin North Am 2001;30:377
4Rockall TA,Logan RFA,Devlin HB,Northfield TC. Incidence of and mortality from acute upper gastro intestinal haemorrhage in the united kingdon. BMJ 1995;311:222-226
5Farrell JJ,Friedman LS. Gastrointestinal bleeding in older people. Gastroenterol Clin North Am 2000;29:1
6Antler AS,Pitchumoni CS,Thomas E, Orangio G, Scanian BC.Gastrointestinal bleeding in the elderly:morbidity, mortality and cause. AM J Surg 1981;142:271
7Cooper BT, Weston CF,Neumann CS. Acute upper gastrointestinal haemorrhage in patients aged 80yers or more. QJM 1988;68:765
8Segal WN, Cello JP. Hemorrhage in the upper gastrointestinal tract in the older patient. AM J Gastroenteral 1997;92:42
9Longstreth GF. Epidemiology and outcome of patients hospitalized with acute lower gastrointestinal hemorrhage:Apopulation-based study. Am J Gastroenterol 1997;92:419
10Rossini FP,Ferrari A,Spandre M, Cavallero M,Gemme C,Loverci C, Bertone A, Pintor MP. Emergency colonscopy. World J Surg 1989;13:190-192
