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C. Dacoll,V. Umpierre,G. Tomasso,G. Saona,A. Alemán,M. L. Cafferata,M. Villa-Gómez and H. Cohen. [Prevalence of gastroesophageal reflux disease in Uruguay]. Gastroenterol Hepatol. 2012;35(7):10.1016/j.gastrohep.2012.02.008.