Alimadadi , M. , Seyedmajidi, S. , Safamanesh, S. , Zanganeh , E., Hosseini, S.A. , Hajiebrahimi, S. and Seyyedmajidi, M. 2022. Preoperative esophagogastroduodenoscopy findings and effects on laparoscopic Roux-en-Y gastric bypass in area with high prevalence of Helicobacter pylori infection: Multi-center experience in Iran. Gastroenterology and Hepatology from Bed to Bench. 15, 1 (Jan. 2022). DOI:https://doi.org/10.22037/ghfbb.vi.2338.