Helicobacter pylori infection and promoter methylation of E-cadherin gene in gastric cancer - Thomazini, Cristiane; Pinheiro, Nidia; Pardini, Maria; Ferrasi, Adriana; Caballero, Otavia; Kobayasi, Shoiti [UNESP]; Naresse, Luiz Eduardo [UNESP]; Rodrigues, Maria (Nature Publishing Group, 2006)