Clinical utility of salivary pepsin measurement in patients with proton pump inhibitor-refractory gastroesophageal reflux disease symptoms: a prospective comparative study

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Abstract
Salivary pepsin measurement has been reported to be useful for diagnosing gastroesophageal reflux disease (GERD). This study aimed to clarify the usefulness of salivary pepsin measurement in patients with proton pump inhibitor (PPI)-refractory GERD symptoms without erosive esophagitis.
Funding Information
  • Japan Society for the Promotion of Science (18K09367)

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