Author = Ahmed Abd El Fattah Ahmed Mustafa
GASTRO-ESOPHAGEAL REFLUX DISEASE BEFORE AND AFTER BARIATRIC SURGERIES

Volume 50, Issue 4, October 2021, Pages 2587-2598

Said El-Seayd Ahmed El-Didamony Ahmed; Ahmed Ibrahim Shehata Kawashti; Ahmed Abd El Fattah Ahmed Mustafa