1. Research Center for Translational Medicine at East Hospital, School of Life Science and Technology Tongji University, Shanghai, People's Republic of China.
2. Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Stem Cell Translational Research Center of Tongji Hospital, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China.
3. Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, People's Republic of China.