Gastric electrophysiology. Development of the electrogastrogram (EGG) as a diagnostic tool in pediatric patients. Celiac Disease. Optimizing information sharing about the gluten-free diet and developing successful strategies for maintenance of the diet at home and in school. Nutritional and gastrointestinal issues in children on the Autism Spectrum Disorders. identification and systematicevaluation of possible underlying GI medical issues affecting behavior in this vulnerable population. Consultant to the Autism Treatment Network.