Role of altered esophageal intraluminal baseline impedance levels in patients with gatroesophageal reflux disease refractory to proton pump inhibitors.

Medicine (Baltimore) · 2016 · PMC5370788 · PMID 27537561

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a decreasing trendno p-value reported

3.2 BILs in different reflux type There was a decreasing trend in mean BILs from proximal to distal esophagus in total RGERD patients, while only BILs from z6 were significantly lower than others from z1 to z5 (all P < 0.01).

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