643 The dynamic of changes of pNFH levels in the CSF compared with the motor scales’ scores during three years of nusinersen treatment in children with spinal muscular atrophy types 2 and 3 . Balneo [Internet]. 2024 Aug. 14 [cited 2026 Aug. 12];15(1). Available from: https://bioclima.ro/Journal/index.php/BRJ/article/view/333