Fig. 2. Spearman correlation coefficients between baseline impedance measured during high-resolution impedance manometry (HRIM-BI) and mean nocturnal baseline impedance (MNBI). CTRS, concomitant typical reflux syndrome; ILPRS, isolated laryngopharyngeal reflux symptoms; UES, upper esophageal sphincter; LES, lower esophageal sphincter.
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