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The effect of esophageal acid exposure on the EPSR. These are TH, CP, and E2 EMG recordings during EUCR and EPSR responses to distension of the cervical esophagus before and after exposure of the esophagus to HCl for 10 min. Acid exposure increased the chance of activating the EPSR. The pressures within the distending balloons are indicated by the mmHg bar.
