Ideal choice of joint replacement for osteoporotic femoral neck fractures in elderly patients: Hemiarthroplasty or total hip arhtroplasty 
Zhao Yao, Tang Jian, Li Quan-li
Chinese Journal of Tissue Engineering Research . 2012, (9): 1692 -1695 .  DOI: 10.3969/j.issn.1673-8225.2012.09.039