4Imperiale TF, Dominitz JA, Provenzale DT, et al. Predicting poor outcome from acute upper gastrointestinal hemorrhage [,l].Atda Intem, 2007,167(12):1291-1296.
5Green BT, Rockey DC, Portwood G, et al. Urgent colonoscopy for evaluation and management of acute lower gastrointestinal hemorrhage: a randomized controlled trial[J]. Am J Gastroenterol,2005,100 (11): 2395-402.
6Peter S, Wilcox CM. Modern endoscopic therapy of peptic ulcer bleeding[J]. Dig Dis,2008, 26(4): 291-299.
7Tsoi KK, Ma TK, Sung JJ. Endoscopy for upper gastrointestinal bleeding: how urgent is it[J]. Nat Rev Gastroenterol Hepatol,2009, 6(8): 463-469.
8Braunwald E,Fauci AS,Kasper DL,et al.Harrison's princpies of internal medicine 15th edn[J].Mc Graw-Hill Company,2001,6(7):293.