Kilinc, H., S. Aslan, B. Turk Bilen, and N. Karadag. “Malignant Proliferating Trichilemmal Tumor:Case Report”. Annals of Medical Research, vol. 14, no. 4, May 2021, pp. 0279-81, http://www.annalsmedres.org/index.php/aomr/article/view/3190.