1. Division of Urologic Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
2. Departments of Psychiatry and Surgery/Division of Emergency Medicine, North Texas Veterans Affairs Health Care System and University of Texas Southwestern Medical Center, Dallas, Texas
3. Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
4. Department of Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama