6Mitrica D,Plesa A,Constantinescu R,et al.Efficacy of Helicobacter pylori eradication therapy in cirrhotic patients with peptic ulcer disease[J].Rev Med Chir Soc Med Nat Iasi,2011,115(2):367.
7Kang JM,Kim N,Lee BH,et al.Risk factors for peptic ulcer bleeding in terms of Helicobacter pylori,NSAIDs,and antiplatelet agents[J].Scand J Gastroenterol,2011,28(1):5.
8Fries JF,Miiier R,Spiz PW,et al. Toward an epidem iology of gastropathy associated with nonsteroidal anti-inflammatory drug use[J].Gastroenterology,1989,96:647.
9Gilinsky NH. Peptic ulcer disease in the elderly[J].Gastroenterol Clin North Am,1990,19:255.
10Dowding C.H. Aimone C.T. Multiple blast-hole stresses and measured fragmentation [J]. Rock Mechanic and Rock Engineering, 1985, 18: 17-36.
