Nusinersen treatment significantly improves hand grip strength, hand motor function and MRC sum scores in adult patients with spinal muscular atrophy types 3 and 4, De Wel, Bram, Goosens Veerle, Sobota Atka, Van Camp Elke, Geukens Ellen, Van Kerschaver Griet, Jagut Marlène, Claes Kathleen, and Claeys Kristl G. , Journal of Neurology, Mar-09-2021, (2020)