1. National Engineering Research Center for Nanotechnology, Shanghai, 200241, China
2. Medical Image Department of General Hospital of Jinan Military Region, Jinan, 250031, China
3. Shanghai University of Medicine &Health Sciences, Shanghai, 201318, China
4. Department of Orthopedic Surgery, The Spine Surgical Center, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China