1. Department of Nephrology, Central People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, China
2. Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia
3. Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
4. Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China