1. Dr. Tuerk and Dr. Keller are with the Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston; Dr. Acierno is with the College of Nursing, Medical University of South Carolina. Dr. Tuerk is also with the Sheila C. Johnson Center for Clinical Services, Department of Human Services, University of Virginia, Charlottesville; Dr. Keller and Dr. Acierno are also with the Ralph H. Johnson VA Medical Center, Charleston, South Carolina.