Barona-Lleó, Luz Salivary Pepsin Test: Useful and simple tool for the laryngopharyngeal reflux diagnosis. [electronic resource] - Acta otorrinolaringologica espanola - 80-85 p. digital Publication Type: Clinical Study; Journal Article ISSN: 2173-5735 Standard No.: 10.1016/j.otorri.2017.03.001 doi Subjects--Topical Terms: AdultAgedFemaleHumansLaryngopharyngeal Reflux--diagnosisMaleMiddle AgedPepsin A--analysisSaliva--chemistry