1. Department of Epidemiology, School of Public and Population Health, University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
2. Correctional Managed Care, University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
3. Department of Health Services, Texas Department of Criminal Justice, Huntsville, Texas, USA.
4. Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, USA.