Asymptomatic Helicobacter pylori infection among rural children and adolescents in Bangladesh oleh Sraboni Mazumder, Fahmida Rahman, Farjana Akter, Rehana Khatun, Shahida Akter, Supti Prava Saha, Md. Shariful Alam Jilani, Mohammad Abu Sayeed, Jalaluddin Ashraful Haq