5Dai WQ,Zhou YQ,Xu L, et al. Eradicating Helicobacter pylori in- fection in duodenal ulcer patients by three short-term triple therapies in China: A multicentcr clinical comparative study[J]. Hepato- Gastroentero1,2012,59 ( 113 ) :296 - 299.
6Ermis F, Akyuz F, Uyanikoglu A, et al. Second-line levofioxaein- based triple therapy' s efficiency for helicobaeter pylori eradication in patients with peptic ulcer [ J ]. Southern Med J, 2011,104 ( 8 ) : 579 - 583.
7Zhou YQ,Xu L,Wang BF, et al. Modified sequential therapy regi- men versus conventional triple therapy for helicobaeter pylori eradi- cation in duodenal ulcer patients in China: A muhieenter clinical comparative study[ J]. Gastroenterol Res Pract,2012 ,2012 :405425.
