Overview Helicobacter Pylori and Proton Pump Inhibitor Status: Completed Trial end date: 2016-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to know the distribution of HP in stomach before use of PPI, during use of PPI, and after stop of PPI. Details Lead Sponsor: Asan Medical CenterTreatments: DexlansoprazoleLansoprazolePantoprazoleProton Pump InhibitorsRabeprazole