M. S. Chishty, M. A. H. Sajid, S.- Younus, and U. U. Haq, “Diagnostic accuracy of toluidine blue in early detection of oral squamous cell carcinoma”, J Fatima Jinnah Med Univ, vol. 15, no. 2, pp. 91–94, Dec. 2021, doi: 10.37018/LXYE5273.