Bhatta, Anil Kumar, Uma Keyal, and Yeqiang Liu . “Congenital Melanocytic Nevus and Fibroepithelioma of Pinkus: A Rare Type of Collision Tumor”. Nepal Journal of Dermatology, Venereology & Leprology 19, no. 1 (April 2, 2021): 81–83. Accessed October 23, 2021. https://www.nepjol.info/index.php/NJDVL/article/view/35955.