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2 ﹒ DeVault KR，Castell DO ﹒ American College of Gastroenterology ﹒ Updated guidelines for the diagnosis and treat ment of gastroesophageal reflux disease ﹒ AmJ Gastroenterol，2005，100.8 ﹒ Calabrese C，Bortolotti M，Fabbri A，et al ﹒ reversibility of GERD Ultr ......