Hamdy, E., Ramadan, I., Mekky, J., Abdel Galeel, A. and Gaber, D. 2023. Serum Matrix Metalloproteinase-9 Level and Previous Disease Activity in Relapsing-Remitting Multiple Sclerosis: MMP-9 and Past-Year Activity in MS. International Clinical Neuroscience Journal. 10, 1 (Mar. 2023), e5. DOI:https://doi.org/10.22037/icnj.v10i1.38610.