Corrigendum: Vitamin B12 Enhances Nerve Repair and Improves Functional Recovery After Traumatic Brain Injury by Inhibiting ER Stress-Induced Neuron Injury - Wu, Fangfang; Xu, Ke; Liu, Lei; Zhang, Kairui; Xia, Leilei; Zhang, Man; Teng, Chenhuai; Tong, Heyan; He, Yifang; Xue, Yujie; Zhang, Hongyu; Chen, Daqing; et al. (Frontiers in Pharmacology, 2021)