Thipse, J., D. B. Anap, D. Shete, and A. Diwate. “Prevalence of Chronic Facet Arthropathy: A Retrospective Study”. International Journal of Research in Medical Sciences, vol. 2, no. 1, Jan. 2017, pp. 193-7, https://www.msjonline.org/index.php/ijrms/article/view/2100.