Al-Rawi, J. R., M. J. E. Ahmed, and A. K. Taher. “Intralesional Penicillamine in the Treatment of Keloids and Hypertrophic Scars: Open Labeled Therapeutic Trial”. International Journal of Health Sciences, vol. 6, no. S5, July 2022, pp. 2722-34, doi:10.53730/ijhs.v6nS5.10553.