Study protocol: Exploratory trial of Forza™, an osmotin-based nutraceutical as adjuvant for the treatment of progressive multiple sclerosis - Viola Costa; Kenda Aluan; Irene Schiavetti; Caterina Bason; Tiziana Vigo; Elisa Leveraro; Corrado Cabona; Valeria Prada; Mauro Costagli; Vincenzo Daniele Boccia; Bruno Ruggiero; Giampaolo Brichetto; et al. (PLoS ONE, 2025)