Venkatesh Lakshmi, Sathya Narayanan, and Narasimhalu C R V. “Efficacy of Intralesional Purified Protein Derivative (PPD) in the Treatment of Multiple Warts”. International Journal of Research in Pharmaceutical Sciences 11, no. 4 (November 6, 2020): 6850–6854. Accessed November 22, 2024. https://ijrps.com/home/article/view/1776.