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Background
Peptest is a noninvasive and convenient diagnostic kit for gastroesophageal reflux disease (GERD). We aimed to explore the application value of Peptest in the diagnosis of GERD.
Methods
Patients suspected of GERD all completed 24 h pH‐impedance monitoring (24 h MII‐pH) and then took proton pump inhibitor (PPI) 2 weeks. The postprandial, post‐symptom and random salivary samples were taken...