This work was financially supported by the National Nature Science Foundation of China (No. 81260501) and the Nature Science Foundation of Yunnan Province (Nos. 2011FB149, KKSA201126061).
Background Osteoarthritis (OA) is the most common form of human polyarthritis.Many genetic factors have been implicated in OA.It was reported that a polymorphism in the gene of interleukin-6 (IL-6) was associated ...