2Lind T,Megraud F,Unge P,et al. The MACH2 study: role of omeprazole in eradication of Helicobacter pylori with 1-week triple ther spies. Gastroenterology,1999,116: 248.
3Lee JM,Breslin NP,Hyde DK,et sl. Treatment options for Helicobacter pylori when proton pump inhibit-based triple therapy fails in clinical practice. Aliment Pharmaool Ther,1999,13:489.
4Michopoulos S,TsibourisP,BouzakisH,et al. Randomized study comparing omeprazole with ranitidine as anti-sevenry agents combined in quadruple second-line Helicobacter pylori eradication regimens. Alimet Pharmacol Ther,2000,14:737.
5PerryF,FestaV,ClementeR,et al. Randomized study of two "rescue" therapies for Helicobacter pylori-infection patients after failure of standard triple therapies. Am J Gastroenterol,2001,96(1) :584.
