Hasoun, Mustafa Nassan, et al. “Evaluation of Retinal Nerve Fiber Layer Thickness Measured by (OCT) Optical Coherence Tomography in Patients With Multiple Sclerosis (MS)”. Journal of Medical and Pharmaceutical Sciences, vol. 5, no. 3, Sept. 2021, pp. 18-1, https://doi.org/10.26389/AJSRP.S060621.