Vardhan Reddy, J. A., and S. Garikapati. “A Study of Effect of Vitamin D Supplementation InOsteoarthritis Patients”. Surgical Review: International Journal of Surgery, Trauma and Orthopedics, Vol. 4, no. 2, June 2018, pp. 90-93, doi:10.17511/ijoso.2018.i02.06.