Bartoš, V. “Cytokeratin 17, Cytokeratin 19 and BerEP4 Expression in Basal Cell Carcinoma and Adjacent Epithelial Structures of the Skin”. Journal of Pakistan Association of Dermatologists, vol. 31, no. 2, Aug. 2021, pp. 153-7, https://www.jpad.com.pk/index.php/jpad/article/view/1637.