Relationship between phalangeal bone mineral density and radiographic knee osteoarthritis 
Deng Zhen-han, Zeng Chao, Li Yu-sheng, Yang Tuo, Li Hui, Lei Guang-hua
Chinese Journal of Tissue Engineering Research . 2015, (20): 3163 -3167 .  DOI: 10.3969/j.issn.2095-4344.2015.20.009