Islam, Q. T., M. R. Siddiqui, E. Mustafa, A. Hossain, M. Y. U. Rahman, and H. Sina. “Legg-Calve-Perthes Disease: A Rare Cause of Bilateral Avascular Necrosis of the Hip Joints”. Anwer Khan Modern Medical College Journal, vol. 4, no. 1, Feb. 2013, pp. 40-41, doi:10.3329/akmmcj.v4i1.13684.