Abstract
Recurrent vomiting is very common in children with severe mental retardation. Nutritional deficiencies, anemia, and repeated bouts of aspiration pneumonitis impede the physical development of these children who already have motor defects. Often, this vomiting is written off as psychogenic, and a variety of methods are employed in attempts to overcome it, including antiemetic drugs, punishment, or a permanent nasogastric tube.

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