Sharma, N. R., S. Singh, D. Kumar, and S. Kumar. “Correlation Between WOMAC Score and Hyalrunoic Acid Levels in Knee Osteoarthritis”. International Journal of Research in Medical Sciences, vol. 3, no. 3, Jan. 2017, pp. 757-62, https://www.msjonline.org/index.php/ijrms/article/view/1370.