1. Graduate Student, Department of Psychiatry and Behavioral Sciences, Division of Medical Psychology.
2. Associate Professor, Department of Psychiatry and Behavioral Sciences, Division of Medical Psychology, and Department of Medicine, Division of Neurology.
3. Associate Professor, Departments of Anesthesiology and Pediatrics.
4. Medical Student, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina.
5. Professor, Department of Anesthesiology, Duke University Medical Center, and Durham Veterans Affairs Medical Center, Durham, North Carolina.