24-hour ambulatory pH-metry in patients with refractory heartburn: a prospective study.
Amir Houshang Mohammad Alizadeh
Mohammad Reza Zali
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Gastroesophageal reflux disease (GERD) is a chronic condition that affects a large proportion of population. The aim of our study was to determine what percentages of patients with persistent heartburn on acid suppressive therapy have evidence of reflux disease while off acid suppressive therapy.