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Böhmer CJ, Niezen-de Boer MC, Klinkenberg-Knol EC, Devillé WL, Nadorp JH, Meuwissen SG. The prevalence of gastroesophageal reflux disease in institutionalized intellectually disabled individuals. Am J Gastroenterol. 1999 Mar;94(3):804-10.
Böhmer CJ, Niezen-de Boer MC, Klinkenberg-Knol EC, Devillé WL, Nadorp JH, Meuwissen SG. The prevalence of gastroesophageal reflux disease in institutionalized intellectually disabled individuals. Am J Gastroenterol. 1999 Mar;94(3):804-10.