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Khatami, A. and Allameh, M.M. and Shahnazi, M. and Kiumarsi, A. and Tajik, A. (2015) A comparison between gastroesophagheal ultrasonography vs. barium swallow in determining the pattern of gastroesophageal reflux in a pediatric population. Medical Ultrasonography, 17 (1). pp. 22-27.