Vala, D., M. Patel, K. Gopal, K. Saxena, P. Dhir, and U. N. Patel. “Analysis of Copper and Zinc Levels in the Mucosal Tissue and Serum of Oral Submucous Fibrosis Patients”. International Journal of Health Sciences, vol. 6, no. S6, July 2022, pp. 1937-43, doi:10.53730/ijhs.v6nS6.10121.