6Jairath V,Thompson J, Kahan BC, et al. Poor outcomes in hospitalized patients with gastrointestinal bleeding:impact of baseline risk,bleeding severity,and process of care [J]. Am J Gastroenterol, 2014,109(10) : 1603-1612.
7Disney BR,Watson R,Blann A,et al. PWE-162 Season- al and diurnal variation in the presentation and severity of acute upper gastrointestinal bleeding [J]. Gut, 2012,61 (Suppl 2) :A362.
8Shalev A,Zahger D,Novack V,et al. Incidence,predic- tors and outcome of upper gastrointestinal bleeding in patients with acute coronary syndromes [J]. Int J Cardiol, 2012, 157(3) :386-390.
9Valkhoff VE,Sturkenboom MC,Kuipers EJ. Risk factors for gastrointestinal bleeding associated with low-dose as- pirin [J]. Best Pract Res Clin Gastroenterol,2012,26(2): 125-140.