Design and basic research on accuracy of a novel individualized three-dimensional printed navigation template in atlantoaxial pedicle screw placement. oleh Xiao-Long Chen, Ya-Fen Xie, Jian-Xin Li, Wu Wu, Guan-Nan Li, Hui-Jing Hu, Xiao-Yun Wang, Zhao-Jian Meng, Yue-Feng Wen, Wen-Hua Huang