Bradykinin B2 receptor gene polymorphisms influence the susceptibility of knee osteoarthritis 
Feng Hui, Feng Hu, Guo Kai-jin, Chen Shuo, Yuan Feng
Chinese Journal of Tissue Engineering Research . 2015, (51): 8208 -8212 .  DOI: 10.3969/j.issn.2095-4344.2015.51.002