Correspondence
Time esophageal pH < 4 overestimates the prevalence of pathologic esophageal reflux in subjects with gastroesophageal reflux disease treated with proton pump inhibitors
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* Corresponding author: Jerry D Gardner gardnerj@verizon.net
BMC Gastroenterology 2008, 8:15 doi:10.1186/1471-230X-8-15
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