Effect of sodium hyaluronate on nitric oxide and synovial thickness in patients with knee osteoarthritis  
Deng Jian-feng, Gao Da-xin, Liu Zhi-xin, Wu Di, Song Hong, Yan Jia-liang, Qi Xi-ming, Sun Feng-li,
Chinese Journal of Tissue Engineering Research . 2014, (52): 8520 -8524 .  DOI: 10.3969/j.issn.2095-4344.2014.52.028