Erratum to: Integrated printed BDNF/collagen/chitosan scaffolds with low temperature extrusion 3D printer accelerated neural regeneration after spinal cord injury
1 Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China.
2 Tianjin Key Laboratory of Neurotrauma Repair, Pingjin Hospital Brain Center, Characteristic Medical Center of PAPF, Tianjin 300162, China.
3 National Engineering Research Center in Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China.
4 Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
5 Department of Hematology, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China.