Geevarughese, Nikku Mathew, Ipe J, Chatterji G, Vashistha D, and Haq RU. “Non-Traumatic Osteonecrosis of the Femoral Head: An Overview”. Orthopaedic Journal of M. P. Chapter 27, no. 2 (June 30, 2021): 53-63. Accessed June 29, 2022. https://ojmpc.com/index.php/ojmpc/article/view/145.