Multi-factor binary Logistic regression for early deep venous thrombosis following total hip replacement 
Zang Xue-hui, Zha Zhen-gang, Feng Yong-hong, Gao Li-hua, Sun Hui
Chinese Journal of Tissue Engineering Research . 2010, (17): 3054 -3057 .  DOI: 10.3969/j.issn.1673-8225.2010.17.004