1. Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia.
2. Department of Cellular Biology and Anatomy, Georgia Health Sciences University, Augusta, Georgia.
3. Department of Orthopaedic Surgery, Georgia Health Sciences University, Augusta, Georgia.
4. Department of Pathology, Georgia Health Sciences University, Augusta, Georgia.
5. Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia.
6. Institute of Regenerative and Reparative Medicine, Georgia Health Sciences University, Augusta, Georgia.