1. Michael E. DeBakey VA Medical Center, Houston (Jones, Agrawal, Sharafkhaneh, Kunik, Jorge, Marsh); Menninger Department of Psychiatry and Behavioral Sciences, Beth K. and Stuart C. Yudofsky Division of Neuropsychiatry, Baylor College of Medicine, Houston (Jones, Kunik, Jorge, Marsh); and Department of Pulmonary, Critical Medicine and Sleep Medicine, Baylor College of Medicine, Houston (Agrawal, Sharafkhaneh)