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Background Conventional catheter-based and wireless pH monitoring continue to be widely used for the evaluation of GERD symptoms despite the emergence of pH-impedance monitoring. Goals We sought to identify patient- and test-related factors predicting objective GERD parameters on catheter-based and wireless pH monitoring. Study Ambulatory pH studies in 2,067 subjects (50.4 ± 0.3 years, 66.3% female)...
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