Ansari, S., K. Dhungel, K. Ahmad, M. Gupta, M. Amanullah, and R. Rauniyar. “Avascular Necrosis of the Femoral Head: A Case Report With Emphasis on Imaging Findings”. Nepalese Journal of Radiology, vol. 2, no. 2, Mar. 2013, pp. 92-95, doi:10.3126/njr.v2i2.7694.