Effect of degenerative factors on cervical spinal cord during flexion and extension: a dynamic finite element analysis. - Xu, Meng-lei; Zeng, Hui-zi; Zheng, Liang-dong; Jin, Chen; Zhu, Shi-jie; Yang, Yi-ting; Cao, Yu-ting; Zhu, Rui; Cheng, Li-ming (Biomechanics & Modeling in Mechanobiology, 2022)