Stress analysis between “X”-shaped spine dynamic fixation and traditional pedicle screw fixation 
Wang Yu, Mei Ji-wen, Mu Shang-qiang, Gao Feng, Huang Rui
Chinese Journal of Tissue Engineering Research . 2015, (53): 8615 -8620 .  DOI: 10.3969/j.issn.2095-4344.2015.53.015