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Mean QOLRAD scores (error bars represent 95% confidence intervals) according to the presence and frequency of persistent regurgitation at week 4 for patients with (A) NERD and (B) RO.
NERD, non-erosive reflux disease; QOLRAD, The Quality of Life in Reflux and Dyspepsia; regurgitation, the presence of an acid taste in the mouth and/or unpleasant movement of material upwards from the stomach; RO, reflux oesophagitis.
