1. Institute of Orthopedic Surgery Xijing Hospital Fourth Military Medical University Xi’an China
2. School of Biomedical Sciences University of Hong Kong Hong Kong China
3. Department of Orthopedic Surgery Hong Hui Hospital Xi’an Jiaotong University College of Medicine Xi’an China
4. Department of Orthopedic Surgery Rush University Medical Center Chicago IL USA
5. Medical Research Institute Northwestern Polytechnical University Xi’an China