Ali, Ammar Bassam, et al. “Comparison of Epithelium-off Versus Epithelium-on Accelerated Corneal Cross-Linking in Keratoconus Patients”. Journal of Medical and Pharmaceutical Sciences, vol. 6, no. 2, June 2022, pp. 1-12, https://doi.org/10.26389/AJSRP.L281021.