Edward R ChristophersenEdward R. Christophersen, PhD, is a professor of pediatrics at the University of Missouri at Kansas City School of Medicine and a staff psychologist at the Children's Mercy Hospitals & Clinics in Kansas City. He received his doctorate in developmenta and child psychology from the University of Kansas in 1970 and held faculty appointments in pediatrics at the University of Kansas Medical Center and at the Departments of Psychology and Human Development in Lawrence, Kansas. Read More Read Less