TY - GEN AU - Liu,Jinping AU - Feng,Hailong TI - Letter to the Editor: Dynamic Cervical Implant SN - 1547-5646 PY - 2015/// PB - Journal of neurosurgery. Spine N1 - Publication Type: Journal Article UR - https://doi.org/10.3171/2015.4.SPINE15412 ER -