S. U. D. E. Khan, M. M. Rahman, A. Khan, M. R. Amin, M. A. Aziz, and Z. Parveen, “Evaluation of Aetiological Factors and Outcome of Cholelithiasis in Children: Experience in Tertiary Level Hospitals”, J. Armed Forces Med. Coll., vol. 15, no. 2, pp. 140–143, Dec. 2020.