A Study to Draw a Normative Database of Laryngopharynx pH Profile in Chinese

Abstract

BACKGROUND/AIMS To draw a normative database of laryngopharynx pH profile in Chinese subjects. METHODS Normal volunteers were recruited from "www.Ganji.com" and People's hospital between May 2008 and December 2009. The Restech pH Probes were calibrated in pH 7 and pH 4 buffer solutions according to the manufacturer's instructions. Each volunteer was asked… (More)
DOI: 10.5056/jnm13138

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