Rajkiran, T., S. Ilakkia P, D. L. Jennifer, and D. Jude E. “Co-Existence of Bilateral Nevus of Ota With Port-Wine Stain- A Rare Case Report”. International Journal of Health and Clinical Research, vol. 4, no. 1, Jan. 2021, pp. 44-46, https://www.ijhcr.com/index.php/ijhcr/article/view/697.