Karstarli Bakay, Ozge Sevil, Niyazi Cetin, Umut Bakay, Gokhan Cinar, and Sule Goksin. “A Window into the Vascular Endothelium in COVID-19: Nails”. Dermatology Practical & Conceptual 15, no. 1 (January 29, 2025): 4927. Accessed April 23, 2026. https://www.dpcj.org/index.php/dpc/article/view/4927.