Construction of a three-dimensional finite element model of lower lumbar spine based on computed tomography images and computer aided design 
Fu Yu, Ruan Di-ke2, Huo Hong-jun, Yang Xue-jun, Li Chen-guang
Chinese Journal of Tissue Engineering Research . 2011, (9): 1557 -1561 .  DOI: 10.3969/j.issn.1673-8225.2011.09.010