Symptoms of gastroesophageal reflux in severely mentally retarded people: a systematic review.

Veer, A.J.E. de, Bos, J., Niezen-de Boer, M.C., Böhmer, C.J.M., Francke, A.L. Symptoms of gastroesophageal reflux in severely mentally retarded people: a systematic review. BMC Gastroenterology: 2008, 8(23)