1. Y. Zhu, MD, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
2. L. Zhang, MD, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University.
3. G. Ouyang, MD, PhD, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University.
4. D. Meng, MD, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University.
5. K. Qian, PT, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University.
6. J. Ma, PhD, Pediatric Bone Health, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Rd, Ottawa, Ontario, K1H 8L1 Canada.
7. T. Wang, MD, PhD, Department of Rehabilitation, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Rd, Nanjing, Jiangsu Province, China 210029.