Fig. 1. Age- and sex-specific frequencies of gastroesophageal reflux disease and its endoscopic diagnosis in all subjects. NERD, non-erosive reflux disease; ERD, erosive reflux disease.

J Neurogastroenterol Motil 2012;18:278~283 https://doi.org/10.5056/jnm.2012.18.3.278

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