Gastroesophageal reflux disease poorly responsive to single-dose proton pump inhibitors in patients without Barrett's esophagus: acid reflux, bile reflux, or both?
Am J Gastroenterol. 2004 Jun;99(6):981-8. doi: 10.1111/j.1572-0241.2004.04171.x.
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PMID: 15180713