Leko, M., R. Ivelj, and M. Bastić. “Malignant Transformation of Urachal Cyst”. Paediatria Croatica 55, no. 4 (December 30, 2011): 293–296. Accessed December 16, 2025. https://paedcro.izahost.com/index.php/paedcro/article/view/776.