Sodium hyaluronate for treatment of chondromalacia patella syndrome   
Yan Hao-ran, Cai Jun-feng, Shen Bin, Wen Jun-xiang, Tan Jun
Chinese Journal of Tissue Engineering Research . 2014, (52): 8525 -8528 .  DOI: 10.3969/j.issn.2095-4344.2014.52.029