Shirley W. Ekvall, PhD, FAAMD, FACN, RD, LD, is a nationally recognized expert in the field of pediatric nutrition, with over 40 years' experience and numerous publications as well as national/international presentations. She has served as director of a national nutrition workshop for children with special health-care needs, as well as a federal research grant reviewer and editiorial consultant for the Surgeon General's Report on Nutrition and Health, several nutrition journals, and publishers. Valli K. Ekvall, PhD, RD, LD, has more than 20 years' experience and several publications related to nutrition for both children and adults with developmental disabilities or special healthcare needs.