Khalifa, Sharquie E., and Waqas S. Abdulwahhab. “Pigmented Basal Cell Carcinoma Develops De Nova Without Pre-Existing Solar Keratosis in Skin Type III and IV”. Journal of Pakistan Association of Dermatologists 33, no. 3 (August 7, 2023): 832–840. Accessed February 26, 2026. https://www.jpad.com.pk/index.php/jpad/article/view/2211.