1. Department of Surgery, College of Medicine, Medical University of South Carolina, Charleston, SC, USA
2. Department of Health Services Administration, School of Health Professions, University of Alabama at Birmingham, Birmingham, AL, USA
3. Department of Acute, Chronic and Continuing Care, School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
4. Division of Infectious Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
5. Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
6. Department of Behavioral and Community Health, School of Public Health, University of Maryland, College Park, MD, USA
7. College of Public Health, Temple University, Philadelphia, PA, USA
8. Preventive Medicine, University of Tennessee Health Sciences Center, Memphis, TN, USA