Effect of different angles of implanted screws on the stability of pedicle screw
Pang Zhong-hui, Liu Miao, Zhang Ya-bin, Yao Yong-feng, Pei Shao-kun
Chinese Journal of Tissue Engineering Research . 2015, (48): 7765 -7769 .  DOI: 10.3969/j.issn.2095-4344.2015.48.010