4BLECKER U.Helicobacter pylori-associated gastroduo clenal diease in childhood[J].South Med J,1997,90:570-576.
5KATO S,OZAWA K,KONNO M,et al.Diagnostic accuracy of the 13C-uren breath test for childhood Helicobacter pylori infection:Amulticenter Japanese study[J].Am J Gastroenterd,2002,97:1668-1673.
7BAHU MDA G,DA SILVEIRA TR,MAGUILNICK I,et al.Endoscopic nodular gastritis:an endoscopic in dicator of high-grade bacterial colonization and severe gastritis in children with Helicobacter pylori[J].J Pediatr Gastroenterol Natr,2003,36:217-222.
