Ranjit, Annu, Sudharshan Rajbhandari, Narayan Gautam, and Yogesh Poudyal. “Association Between Serum Zinc Level and Cutaneous Viral Warts: A Case Control Study”. Nepal Journal of Dermatology, Venereology & Leprology 17, no. 1 (March 31, 2019): 17-21. Accessed August 15, 2020. https://www.nepjol.info/index.php/NJDVL/article/view/23153.