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The distribution of gastroesophageal reflux disease (GERD) according to classification. (A) The proportion of erosive reflux disease (ERD) and non-erosive reflux disease (NERD) in GERD patients with esophagogastroduodenoscopy (EGD) (n = 84). (B) The proportion of de novo GERD in patients with GERD (n = 107).
