Keith E WilliamsDr. Keith Williams is a licensed psychologist and a Board Certified Behavior Analyst (BCBA). He has been the Director of the Feeding Program at the Penn State Hershey Medical Center for twenty years. Dr. Williams is a Professor of Pediatrics a the Penn State College of Medicine, where he teaches medical students, graduate students, and medical residents. He has written more than sixty book chapters and articles in the area of feeding problems and child nutrition. He is coauthor of Treating Eating Problems of Children with Autism Spectrum Disorders and Developmental Disabilities: Interventions for Professionals and Parents. Read More Read Less