1. Operative Care Line, Michael E. DeBakey VA Medical Center, Department of Surgery, Baylor College of Medicine, Houston, Texas2Department of Cardiovascular Surgery, Texas Heart Institute, Houston
2. Cooperative Studies Program Central Office, US Department of Veterans Affairs, Washington, DC
3. Department of Health Evidence and Policy, Mount Sinai School of Medicine, New York, New York
4. Operative Care Line, Michael E. DeBakey VA Medical Center, Department of Surgery, Baylor College of Medicine, Houston, Texas
5. Mental Health Care Line, Michael E. DeBakey VA Medical Center, Houston, Texas