1. Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
2. Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
3. Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina, United States
4. Department of Anatomy, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
5. Department of Medicine, Ralph H. Johnson Veterans Affairs Health Care System, Charleston, South Carolina, United States