1. Janet K. Williams is an assistant professor in the College of Nursing, The University of Iowa, Iowa City.
2. Lynn Charles Richman is professor and director of the Division of Pediatric Psychology in the College of Medicine, The University of Iowa.
3. Donald B. Yarbrough is an associate professor in the Division of Psychological and Quantitative Foundations, College of Education, The University of Iowa. Address: Janet K. Williams, College of Nursing, The University of Iowa, Iowa City, IA 52242.