1. Department of Medicine; Houston Methodist Hospital; Houston Texas
2. Health Policy, Quality and Informatics Program, Michael E. DeBakey VA Medical Center, Health Services Research and Development Center for Innovations, Houston, Texas; and Section of Health Services Research, Department of Medicine; Baylor College of Medicine; Houston Texas
3. Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina; WJB Dorn VA Medical Center; Columbia South Carolina
4. Section of Nephrology, Department of Medicine; Baylor College of Medicine; Houston Texas
5. Section of Cardiology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas; and Section of Cardiovascular Research, Department of Medicine; Baylor College of Medicine; Houston Texas