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(Created page with "== Investigations for gastroesophageal reflux disease == Many modalities may be used in gastroesophageal reflux disease: * Upper endoscopy * Oesophageal pH monitoring * Oesophageal impedance * Bilitec® === Oesophageal pH monitoring === Oesophageal pH can be monitored by a probe or wireless capsule placed in the stomach near the lower oesophagus for 24 hours, allowing measurement of acid in the distal oesophagus. === Oesophageal impedance === Oesophageal imped...") |
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